Fixed bug where closing the icon selector would close the screen

lib/screens/room/new.dart

@@ -106,8 +106,7 @@ class _NewRoomPageState extends State {
                                                                     _ctrIcon =
                                                                         icon;
                                                                   });
-                                                                  Navigator.of(
+                                                                  Navigator.of(ctx)
-                                                                          context)
                                                                       .pop();
                                                                 }));
                                                       }).toList())),