* feat: Add history visible alert.
- Adds a dismissable alert that is displayed whenever the user
opens a room with `history_visibility` != `joined`. When cleared,
this is recorded in the app's data store.
- When opening a room with `history_visibility` = `joined`, this
flag is cleared.
Issue: element-hq/element-meta#2875
* tests: Add unit tests for history sharing in `RoomScreenFooterView`.
* feat: Rename flag to `hasSeenHistoryVisibleBannerRooms`, document.
* refactor: Merge enum variants, use function for banner description.
* feat: Use `AppSettings.historyVisibleDetailsURL` over hard-coded value.
* tests: Correct potential race condition with deferred assertion.
* chore: Use Localazy translation string over project-defined.
* fix: Final tweaks and review comments.
* chore: Checkout `Enterprise` submodule.
* tests: Final fixes.
1e0bbce3c4