Webclient: Handle firing an event once (#4499)

* draft: handle firing an event once

* lint

* Prevent rapid double-click on sending messages

* no rest spread on single primative when sibling components exist

* clear message instead of using a fireOnce handler.

* fix tests

* remove unnecessary validate mock

webclient/src/store/index.ts

@@ -13,6 +13,7 @@ export {
 export * from 'store/server/server.interfaces';
 
 export {
+  Types as RoomsTypes,
   Selectors as RoomsSelectors,
   Dispatch as RoomsDispatch } from 'store/rooms';