Improve parallelization of loadMeAndConfig action (#27858)

1. Rewrite of loadConfigAndMe function which includes compatible return types along with less blocking redux actions
2. Actions of webapp/channels/src/components/root/actions.ts moved to webapp/channels/src/actions/views/root.ts for consistency
3. Removes 2 redundant network requests for config and license.

webapp/platform/types/src/requests.ts

@@ -29,7 +29,6 @@ export type ThreadsRequestStatuses = {
 };
 
 export type TeamsRequestsStatuses = {
-    getMyTeams: RequestStatusType;
     getTeams: RequestStatusType;
 };