Fix flaky AppTile tests (#31442)

* Bit of cleanup

* Attempts to fix

* uncomment

* Restructure tests

* Better reset

* Descrew up tests

* fix comment

* Remove redundant calls

src/settings/watchers/ThemeWatcher.ts

@@ -122,7 +122,6 @@ export default class ThemeWatcher extends TypedEventEmitter<ThemeWatcherEvent, T
                 return theme;
             }
         }
-        logger.log("returning theme value");
         return SettingsStore.getValue("theme");
     }