Manifest v3

[ffoodd]

Closes #1, closes #3, closes #5, closes #11, should fix #18

• Move Manifest file to v3
• Handle Service Worker
• Switch from tabs.executescript() to scripting.insertCSS() and scripting.removeCSS()
• Maybe switch to modules?
• Check chrome.tabs.query() and chrome.storage() changes
  • Regarding storage: https://developer.chrome.com/docs/extensions/reference/storage/#usage → switches to Promises
• Switch to chrome.i18n
  • Check if some strings can be dropped from messages.json
• Improve popup
• Improve checkalt injected scripts
  • Prevent alt reporter to open (try to disable it?) when no images in the pages to fix Do not open check alts reporter when no images are found #5
• Disable action on browser internal pages

FWIW Mozilla's Web Extension polyfill is probably useless with Manifest V3.

Take a look at Orange Confort+ move to MV3 for insights.

Current scope

1. Dynamically inject a11y.css, with level selection
2. Check alternatives
3. Show lang attributes
4. Force outlines
5. Force text spacings

Web Extension features

1. Popup including switches to activate options
2. Store options states in browser storage
3. Apply stored options on load
4. Localized strings: there's an API for i18n → https://developer.chrome.com/docs/extensions/mv3/user_interface/#localize

Notes

The browser_specific_settings to specify a Gecko id should allow us to use the same manifest file for Firefox and Chromium.

[ffoodd]

Remaining after merge:

• git tag, maybe npm release?
• publish on Firefox Add-On, Chrome WebStore, and Microsoft Store for Publish on Microsoft Store #22?