* feat: Add visible history alert to encrypted rooms.
- 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: https://github.com/element-hq/element-meta/issues/2875
* chore: Fix linting issues.
* feat: Move alert showing logic into state presenter.
* chore: Fix linting issues.
* tests: Fixup tests.
* feat: Use real link.
* chore: Update license header.
* chore: Add (c) to license headers.
* chore: Add `.` to license header.
* feat: Lock alert behind history sharing developer setting.
* ci: Trigger record screenshots
* feat: Create repo key using session ID for multi-account support.
* feat: Use session ID hash for constructing data store.
* tests: Correct and update tests.
* tests: Update snapshots.
* feat: Prevent identity alert from displaying with history visibility alert.
* feat: Tidy up HistoryVisibleStatePresenter logic, update previews.
* chore: Remove unused import.
* chore: Update screenshots.
* feat: Add translation string.
* chore: Remove redundant temporary translation file.
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