Update app.py

app.py

@@ -28,6 +28,11 @@ class FileHandler(FileSystemEventHandler):
             return
         print(f'File {event.src_path} has been deleted.')
 
+    def on_moved(self, event):
+        if event.is_directory:
+            return
+        print(f'File {event.src_path} has been renamed to {event.dest_path}.')
+
 JOIN = {}
 
 WATCH = {}