Adds includeDeleted flag to get remote cluster app and store methods (#28182)

server/channels/store/timerlayer/timerlayer.go

@@ -7065,10 +7065,10 @@ func (s *TimerLayerRemoteClusterStore) Delete(remoteClusterId string) (bool, err
 	return result, err
 }
 
-func (s *TimerLayerRemoteClusterStore) Get(remoteClusterId string) (*model.RemoteCluster, error) {
+func (s *TimerLayerRemoteClusterStore) Get(remoteClusterId string, includeDeleted bool) (*model.RemoteCluster, error) {
 	start := time.Now()
 
-	result, err := s.RemoteClusterStore.Get(remoteClusterId)
+	result, err := s.RemoteClusterStore.Get(remoteClusterId, includeDeleted)
 
 	elapsed := float64(time.Since(start)) / float64(time.Second)
 	if s.Root.Metrics != nil {