fix: return empty dict if setup wizard is not completed

[saurabh6790]

1. When returns empty result

2. when returns empty dict, the system does not load setup wizard though setup wizard is no completed

3. Fix:
   Return dict with empty count

return {
     "open_count_doctype": {},
     "open_count_module": {},
     "open_count_other": {},
     "targets": {},
     "new_messages": []
}