More Moderation tweaks (#2566)

* Show room member role changes in the timeline.

* Fix a bug in room flow coordinator.

* Tidy up roles and permissions flow.

* Refresh the power levels in the room details screen.

* Automatically update permissions after saving.

* Remove extra button.

* Add a short delay to the roles and permissions screen snapshots.
The permissions rows are now in a loading state initially.

ElementX/Sources/Screens/RoomChangeRolesScreen/RoomChangeRolesScreenCoordinator.swift

@@ -26,7 +26,7 @@ struct RoomChangeRolesScreenCoordinatorParameters {
 }
 
 enum RoomChangeRolesScreenCoordinatorAction {
-    case done
+    case complete
 }
 
 final class RoomChangeRolesScreenCoordinator: CoordinatorProtocol {
@@ -54,8 +54,8 @@ final class RoomChangeRolesScreenCoordinator: CoordinatorProtocol {
             
             guard let self else { return }
             switch action {
-            case .done:
-                self.actionsSubject.send(.done)
+            case .complete:
+                self.actionsSubject.send(.complete)
             }
         }
         .store(in: &cancellables)