PLT-5699 Improvements to channel switcher (#6486)

* Refactor channel switcher to not wait on server results

* Change channel switcher to quick switcher and include team switching

* Add sections, update ordering and add discoverability button

* Fix styling error

* Use CMD in text if on mac

* Clean yarn cache on every install

* Various UX updates per feedback

* Add shortcut help text for team switcher

* Couple more updates per feedback

* Some minor fixes for GM and autocomplete race

* Updating UI for channel switcher (#6504)

* Updating channel switcher button (#6506)

* Updating switcher modal on mobile (#6507)

* Removed jQuery usage

* Rename function to toggleQuickSwitchModal

webapp/stores/modal_store.jsx

@@ -39,6 +39,7 @@ class ModalStoreClass extends EventEmitter {
         case ActionTypes.TOGGLE_GET_TEAM_INVITE_LINK_MODAL:
         case ActionTypes.TOGGLE_GET_PUBLIC_LINK_MODAL:
         case ActionTypes.TOGGLE_DM_MODAL:
+        case ActionTypes.TOGGLE_QUICK_SWITCH_MODAL:
             this.emit(type, value, args);
             break;
         }