🧵 Enable threads by default (#9736)

* Delabs threads

* remove threads reload when labs is toggled

* Fix ts strict

* fix rebase mistake

* remove .only

* fix pr comments

* re-introduce backwards compat

* Fix export test

* Fix SearchREsultTile test

* strict ts

src/stores/widgets/StopGapWidgetDriver.ts

@@ -236,7 +236,7 @@ export class StopGapWidgetDriver extends WidgetDriver {
                         // For initial threads launch, chat effects are disabled
                         // see #19731
                         const isNotThread = content["m.relates_to"].rel_type !== THREAD_RELATION_TYPE.name;
-                        if (!SettingsStore.getValue("feature_thread") || isNotThread) {
+                        if (!SettingsStore.getValue("feature_threadstable") || isNotThread) {
                             dis.dispatch({ action: `effects.${effect.command}` });
                         }
                     }