rebuildOnScopeChanges function
Will trigger a rebuild of the Widget if any new GetIt-Scope is pushed or popped.
This function will return true if the change was a push otherwise false.
If no change has happened then the return value will be null.
Implementation
bool? rebuildOnScopeChanges() {
assert(_activeWatchItState != null,
'rebuildOnScopeChanges can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');
return _activeWatchItState!.rebuildOnScopeChanges();
}