mab update, !short command, last_access fix

- Updated mab to v0.5.0
- Added `!short` command to add named tokens
- Fixed `last_access_at` field not being updated

web_routes.py

@@ -58,7 +58,7 @@ async def _get_notify(request: Request, params: ModelGetNotify = Depends()):
     text += html.escape(params.text)
     # try to send the notification
     try:
-        notification_id = await matrix.send_text_to_room(
+        notification_id = await matrix.send_text(
             room.matrix_id,
             text,
             is_html=True