feat(i18n): localize global search filters and results

[rexxars]

Description

This localizes all the different search filters, as well as the results list and orderings.
In doing so, I had the need to format both units and date/time, so I introduced two new hooks:

• useIntlDateTimeFormat - the same as the other useIntl* hooks, it uses the memoized cache of formatters and returns a date/time formatter based on the current locale.
• useUnitFormatter - basically the same as the other useIntl* hooks, but I found it very tedious to have to call useNumberFormat three times if I wanted to format days, months and years - so I decided to make one that simply does this behind the scenes. It's all memoized anyway.

You'll notice that the naming on the latter hook does not include the Intl part, and lives in core, not i18n. I am starting to lean in the direction that none of these hooks should include the Intl part, as localizing should be the default for the studio, not an opt-in kind of thing. Would be interested in hearing opinions here.

@robinpyon I may have butchered the beautiful work you've put into the search filters as I tried to ensure that the labels could be localized. Blown away by the amount of work you've put into the search feature ❤️

Lastly, the "debug triangles" were affecting the layout a bit to much in some cases, so I introduced a new debug mode that uses a right to left modifier symbol - it basically inverts all the text. This mode means there are little to no layout changes compared to normal, and it is still fairly easy to see what is localized and not (either they are dynamic strings, or they are yet to be localized).

Known issues/limitations

• The date/time filter currently does not format the input values according to locale. The reason for this is that it also includes parsing of that format, eg it tries to parse "Oct 13, 2023" back to a value. It is unclear to me at this time how we'll want to approach this.
• I discovered a few issues with the calendar navigation as I was using it that I have not discovered before - it may be related to timezones. Have reproduced the issue on next, so will not address it in this PR.
• Certain elements from @sanity/ui have built-in aria labels that I was not able to localize. Have raised this as a concern and will address it separately.

What to review

• Search filters work and show correct values

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[github-actions]

Package	Documentation Change
sanity	+19%
@sanity/types	+2%
sanity/desk	+2%

Full Report

sanity

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@sanity/types

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sanity/desk

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sanity/router

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sanity/cli

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sanity/_internal

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[github-actions]

Component Testing Report Updated Nov 3, 2023 6:15 PM (UTC)

File	Status	Duration	Passed	Skipped	Failed
formBuilder/ArrayInput.spec.tsx	✅ Passed (Inspect)	8s	3	0	0
formBuilder/inputs/PortableText/Annotations.spec.tsx	✅ Passed (Inspect)	9s	3	0	0
formBuilder/inputs/PortableText/Decorators.spec.tsx	✅ Passed (Inspect)	9s	6	0	0
formBuilder/inputs/PortableText/Input.spec.tsx	✅ Passed (Inspect)	13s	9	0	0
formBuilder/inputs/PortableText/ObjectBlock.spec.tsx	✅ Passed (Inspect)	45s	18	0	0
formBuilder/inputs/PortableText/Styles.spec.tsx	✅ Passed (Inspect)	10s	6	0	0
formBuilder/inputs/PortableText/Toolbar.spec.tsx	✅ Passed (Inspect)	5s	3	0	0