The layering of this code was weird. There's paging sources and remote
mediators making calls "up" in to the viewmodel, so they had a cyclic
dependency on each other.

And there's a remote mediator when there's no local database to cache to,
which made things more complicated.

So:

1. Remove the remote mediator
2. Put the code to fetch statuses in to the paging source
3. Push the a variant of the "TimelineKind" type in to the paging source
   (probably not its final location), as this needs to be as low down the
   dependency tree as possible to avoid cycle.
   - Implement it as a sealed class instead of an enum, so that the
     subclasses can hold non-null Strings where necessary, instead of relying
     on `!!`
4. Comment out some code that either needs to be deleted or refactored, I'm
   not sure which yet.

This builds and runs, and shows network timelines (local, federated, etc).
Some functionality it lost (e.g., retaining state about whether or not the
user has expanded a status) but that will be restored in future commits.

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/CachedTimelineViewModel.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelineViewModel.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/TimelineViewModel.kt

Use this in `NetworkTimelineViewModel`.

Move it from TimelineFragment to TimelinewViewModel.

Update StatusDisplayOptions.kt to handle SHOW_CARDS_IN_TIMELINES pref

The old type was an enum, the new type is a hierarchy of sealed classes.

This allows each class to carry with it the information necessary for that
timeline.

For example, the PublicFederated timeline needs no additional data. But a
timeline for a hashtag does.

This simplifies TimelineFragment.newInstance(). Before the called had to
know which optional parameters to pass in, or whether they should actually
call newHashtagInstance.

Now they just construct a timeline of the appropriate kind, with the correct
data, and pass that in.

This also means that initialisation of TimelineFragment does not need to
unpack data from multiple extras in the launch intent, everything is in the
parcelized TimelineKind.

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/TimelineFragment.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelinePagingSource.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelineRemoteMediator.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/NetworkTimelineViewModel.kt

- Add CachedTimelineRepository between CachedTimelineViewModel and CachedTimelineRemoteMediator
- Update CachedTimelineViewModel to use the repository
- Modify TImelineFragment to be closer to NotificationsFragment (easier to figure out what code can be reused)
- Add DeveloperTools to clear the DB, and remove the most recent 40 statuses
- Add many TODOs marking code to refactor or remove

- Remove StatusViewData.Placeholder
- Move StatusViewData.Concrete into StatusViewData

- Delete the class
- Update instantiation locations
- Remove obsolete string resource

CachedTimelineViewModel no longer needs an injected AppDatabase.

To do this:

- Extend what was `NotificationWorkerFactory` to `WorkerFactory`. This can construct arbitrary Workers as long as they provide their own Factory for construction.

The per-Worker factory contains any injected components just for that worker type, keeping `WorkerFactory` clean.

- Move `NotificationWorkerFactory` to the new model.

- Implement `PruneCacheWorker`, and remove the code from `CachedTimelineViewModel`.

- Create the periodic worker in `TuskyApplication`, ensuring that the database is only pruned when the device is idle.

This pushes the last of the EventHub responsibility out of TimelineFragment in to TimelineViewModel

Doesn't actually save it (is consistent with current behaviour) but provides the hook from which to hang the future code.

- Create a FiltersRepository
- Move code to fetch filters in to the new repository
- Fetch filters on startup, and when relevant preferences change
- Expose errors that occur when loading filters in the UI

This removes the API dependency from the timeline view models.

This is identical to the existing adapter for notifications, so rename that one and use it for both.

Retrofit and Room both run suspend functions on the appropriate dispatcher already

Currently translated at 90.8% (548 of 603 strings)

Translated using Weblate (Latvian)

Currently translated at 90.5% (546 of 603 strings)

Translated using Weblate (Latvian)

Currently translated at 90.3% (545 of 603 strings)

Co-authored-by: Mārtiņš Bruņenieks <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/lv/
Translation: Tusky/Tusky

Currently translated at 100.0% (603 of 603 strings)

Translated using Weblate (Vietnamese)

Currently translated at 100.0% (603 of 603 strings)

Co-authored-by: Hồ Nhất Duy <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/vi/
Translation: Tusky/Tusky

Currently translated at 100.0% (603 of 603 strings)

Co-authored-by: Rhoslyn Prys <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/cy/
Translation: Tusky/Tusky

Currently translated at 100.0% (603 of 603 strings)

Co-authored-by: XoseM <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/gl/
Translation: Tusky/Tusky

Currently translated at 100.0% (603 of 603 strings)

Co-authored-by: Deleted User <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/de/
Translation: Tusky/Tusky

Currently translated at 99.6% (601 of 603 strings)

Co-authored-by: Quentí <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/oc/
Translation: Tusky/Tusky

Currently translated at 97.8% (590 of 603 strings)

Co-authored-by: Luna Jernberg <[email protected]>
Translate-URL: https://weblate.tusky.app/projects/tusky/tusky/sv/
Translation: Tusky/Tusky

# Conflicts:
#	app/src/main/res/values-cy/strings.xml
#	app/src/main/res/values-lv/strings.xml
#	app/src/main/res/values-oc/strings.xml
#	app/src/main/res/values-sv/strings.xml

This reverts commit e4c1584.

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/TimelineFragment.kt
#	app/src/main/res/values-cy/strings.xml
#	app/src/main/res/values-de/strings.xml
#	app/src/main/res/values-lv/strings.xml
#	app/src/main/res/values-oc/strings.xml
#	app/src/main/res/values-sv/strings.xml
#	app/src/main/res/values-zh-rCN/strings.xml

…layOptions

This ensures that the click is acted on immediately, instead of waiting 500ms and then acting.

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/TimelineFragment.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/CachedTimelineViewModel.kt

…ment-arch

- Ensures that status IDs (used as keys) are sorted correctly.
- Update tests to use it
- Add tests for gaps in the page cache
- Add tests for fetching stuff outside the page cache

- Use runTest instead of runBlocking
- Account for different API calls in new remote mediator code
- Remove bogus "endOfPaginationReached" check

Using the view model's scope for long running operations is a problem.
If the user navigates away and the view model is killed the operation
will be cancelled.

This is OK when fetching data. But sending data using the API (e.g.,
bookmarking a status) should continue in the background after the
user navigates away.

- Provide an ApplicationScope injectable
- Inject it to the repositories that need it
- Use the scope when performing potentially long-running operations

Similar to the ones for notifications.

Refactored account preference handling so that they can be tested:

- Renamed AccountPreferenceHandler to AccountPreferenceDataStore
- Injected it in to components that need it
- Mock it in tests

Tests showed that PrefKEys.MEDIA_PREVIEW_ENABLED wasn't being handled,
so update code to do that properly.

…agment-arch

Requires a database migration

- Fixes a bug where the reading position could get reset
- Confirm it stays fixed with tests

v22.0-beta.3

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v22.0-beta.4

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v22.0-beta.5

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# gpg:                using RSA key 8F6DDEF0C87F1882EFBD3D01F95268159C2EC897
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# Conflicts:
#	app/schemas/com.keylesspalace.tusky.db.AppDatabase/51.json

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# gpg:                using RSA key 8F6DDEF0C87F1882EFBD3D01F95268159C2EC897
# gpg:                issuer "[email protected]"
# gpg: Good signature from "Nik Clayton <[email protected]>" [ultimate]

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsPagingSource.kt

v22.0

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# gpg: Good signature from "Nik Clayton <[email protected]>" [ultimate]

…ment-arch

# Conflicts:
#	app/lint-baseline.xml
#	app/src/main/java/com/keylesspalace/tusky/TuskyApplication.kt
#	app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationWorker.kt
#	app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationsViewModel.kt
#	app/src/main/java/com/keylesspalace/tusky/components/timeline/viewmodel/CachedTimelineViewModel.kt
#	app/src/main/java/com/keylesspalace/tusky/di/WorkerModule.kt
#	app/src/main/java/com/keylesspalace/tusky/util/FlowExtensions.kt
#	gradle/libs.versions.toml

# Conflicts:
#	app/src/main/java/com/keylesspalace/tusky/components/preference/AccountPreferencesFragment.kt
#	app/src/main/java/com/keylesspalace/tusky/settings/AccountPreferenceDataStore.kt
#	app/src/main/res/values-es/strings.xml
#	app/src/main/res/values-fa/strings.xml
#	app/src/main/res/values-lv/strings.xml

…agment-arch

…agment-arch

…eady does that.