Update environment object setup and view model context wrapping to restore SwiftUI UI tests

Riot/Modules/Room/RoomViewController.m

@@ -5154,11 +5154,16 @@ static CGSize kThreadListBarButtonItemImageSize;
     [self.userSuggestionCoordinator processSuggestionPattern:suggestionPattern];
 }
 
-- (UserSuggestionSharedContext *)userSuggestionContext
+- (UserSuggestionViewModelContextWrapper *)userSuggestionContext
 {
     return [self.userSuggestionCoordinator sharedContext];
 }
 
+- (MXMediaManager *)mediaManager
+{
+    return self.roomDataSource.mxSession.mediaManager;
+}
+
 - (void)roomInputToolbarViewDidOpenActionMenu:(RoomInputToolbarView*)toolbarView
 {
     // Consider opening the action menu as beginning to type and share encryption keys if requested.