fix spaces

app.py

@@ -194,7 +194,7 @@ def activate(hf_users: str, ms_users: str):
             monitors.append(space)
         else:
             studios.append(space)
-    space = monitors + studios
+    spaces = monitors + studios
 
     for user in tqdm(ms_usernames, desc="Collecting studios..."):
         username = user.strip()