Fix not being able to decline an invite from the room list (#3466)

* Add `InvitedRoom` to wrap Rust SDK Rooms in 'invited' membership state.

At the moment, this is a wrapper that allows us to call `Room.leave()` without having to initialise the room's timeline (which is impossible).

* Add `MatrixRoom.getInvitedRoom(roomId)` to get one of these rooms.

Also, `RustRoomFactory` now has a `createInvitedRoom` method for this.

* Adapt `AcceptDeclineInvitePresenter` to use the new APIs.

features/invite/impl/src/main/kotlin/io/element/android/features/invite/impl/response/AcceptDeclineInvitePresenter.kt

@@ -112,8 +112,8 @@ class AcceptDeclineInvitePresenter @Inject constructor(
 
     private fun CoroutineScope.declineInvite(roomId: RoomId, declinedAction: MutableState<AsyncAction<RoomId>>) = launch {
         suspend {
-            client.getRoom(roomId)?.use {
-                it.leave().getOrThrow()
+            client.getInvitedRoom(roomId)?.use {
+                it.declineInvite().getOrThrow()
                 notificationCleaner.clearMembershipNotificationForRoom(client.sessionId, roomId)
             }
             roomId