manager: make agenda's groups foldable (#85616)

chrono/apps/user_preferences/api_views.py

@@ -39,9 +39,6 @@ def save_preference(request):
         return bad_fmt_response
     if not isinstance(prefs, dict) or len(prefs) != 1:
         return bad_fmt_response
-    value = list(prefs.values())[0]
-    if not isinstance(value, bool):
-        return bad_fmt_response
 
     user_pref.preferences.update(prefs)
     user_pref.save()

tests/api/test_user_preferences.py

@@ -48,8 +48,8 @@ def test_user_preferences_api_ok(app, admin_user):
     'bad_body',
     (
         json.dumps({'fake-id-1': True, 'fake-id-2': False}),
-        json.dumps({'fake-id-1': 'true'}),
-        json.dumps({'fake-id-1': 1}),
+        '"not a dict"',
+        '[1,2,3]',
         '{\'fake-id-1\': true',
     ),
 )