* Add a banner to encrypted rooms with visible history. (#4738)
* 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.
* fix: Condition banner visibility on feature flag state.
* fix: Prioritise identity violations over history visibility banner.
* tests: Add snapshots for history visible banner.
* tests: Use deferred failure timeout for improved test power.
* chore: Tweaks to spelling, simplify state logic.
* fix: Remove "g".
* fix: Show banner for shared/world-readable rooms, not invited.
* refactor: Use `else-if` instead of `if`.
* Simplify QR errors even more and use the correct error state for deviceAlreadySignedIn.
* Remove the pre-defined padding on TitleAndIcon and use it in the QRCodeLoginScreen too.
* Update FullscreenDialog to allow different horizontal padding in each section.
* Move BigIcon into Compound.
* Replace the old server selection image asset with the \.host icon.
* Add a new TitleAndIcon component to Compound.
* Add the ability to override TitleAndIcon's padding.
* Tidy-up Rust to Swift mapping.
* Refactor out a dedicated QRCodeErrorView.
* Use the new QRCodeErrorView for most error state snapshots.
* Simplify QRCodeErrorView structure.
Also updates the background to match the designs.
* Fix a small compile error in the unit tests.
* Add a LinkNewDeviceService that exposes the SDK's grant QR code login methods.
* Add a flow coordinator for linking a new device.
Changes the presentation too.
The original viewState mapping just stopped working properly for some reason. Updating it to `observe()` on `StateStoreViewModelV2` worked properly but I liked the viewAction based solution better, felt more streamlined.
