Add space management to the flows. (#4978)

* Add the menu entries to add/remove rooms to/from a space.

* Add a user indicator to SpaceAddRoomsScreen.

* Reset the SpaceRoomListProxy after adding/removing any children.

* Calm the animations down a bit when entering EditMode on the SpaceScreen.

ElementX/Sources/Services/Spaces/SpaceRoomListProxy.swift

@@ -60,6 +60,10 @@ class SpaceRoomListProxy: SpaceRoomListProxyProtocol {
         }
     }
     
+    func reset() async {
+        await spaceRoomList.reset()
+    }
+    
     // MARK: - Private
     
     private func handleUpdates(_ updates: [SpaceListUpdate]) {