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_middleware.py

@@ -84,6 +84,7 @@ class AuthMiddleware(BaseHTTPMiddleware):
                 status_code=status.HTTP_403_FORBIDDEN,
                 content={"detail": "No such token"}
             )
+        await database.token_set_last_access(token, time.time())
         request.state.token = token_data
         return await call_next(request)