Make sure the live timeline is destroyed before clearing a room's cache (#4515)

* Make sure the live timeline is destroyed before clearing a room's cache

According to the SDK team, having a live timeline could lead to DB issues.

* Try to destroy all room and list item references when the `RustRoomFactory` is destroyed

It may also have some effect on DB corruption issues we've seen

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/room/RustRoomFactory.kt

@@ -81,6 +81,10 @@ class RustRoomFactory(
         withContext(NonCancellable + dispatcher) {
             mutex.withLock {
                 Timber.d("Destroying room factory")
+                cache.snapshot().values.forEach { (listItem, innerRoom) ->
+                    innerRoom.destroy()
+                    listItem.destroy()
+                }
                 cache.evictAll()
                 isDestroyed = true
             }