* Fix pinning event loading after restart
* Update deps
* Replace pinned event list
* Add a dialog to confirm to unpin all messages
* Use `EmptyState` when there is no pinned messages
* Rework `PinnedEventTile` tests
* Add comments and refactor `PinnedMessageCard`
* Rework `PinnedMessageCard` tests
* Add tests for `UnpinAllDialog`
* Add e2e tests for pinned messages
* Replace 3px custom gap by 4px gap
* Use string interpolation for `Pin` action.
* Update playright sceenshot for empty state
* Refine styles of menus, toasts, popovers, and modals
This is a reintroduction of https://github.com/matrix-org/matrix-react-sdk/pull/12247, with the difference that modal styles have now been refreshed as well.
* Restore the fixed heights of some dialogs
* Fix formatting and flaky screenshot