feat(taskqueue): rename from 'default' to 'poimen-taskqueue'

Updated all references to task queue:
- cmd/worker/main.go: NewWorker second param
- cmd/starter/main.go: ExecuteWorkflow StartWorkflowOptions + output display

cmd/worker/main.go

@@ -29,7 +29,7 @@ func main() {
 	defer c.Close()
 
 	// Create worker
-	w := worker.New(c, "default", worker.Options{})
+	w := worker.New(c, "poimen-taskqueue", worker.Options{})
 	if w == nil {
 		log.Fatalf("failed to create worker")
 	}
@@ -55,7 +55,7 @@ func main() {
 	// w.RegisterActivity(action.ReadLessonsActivity)
 
 	// Run worker
-	fmt.Println("Starting worker on queue 'default'...")
+	fmt.Println("Starting worker on queue 'poimen-taskqueue'...")
 	if err := w.Run(worker.InterruptCh()); err != nil {
 		log.Fatalf("worker failed: %v", err)
 	}