wxiaoguang bfab129fb9
Fix label list divider (#25312)
We only needs 2 lines to hide the dividers.

```
  $dropdownLabelFilter.dropdown('setting', {'hideDividers': 'empty'});
  $dropdownLabelFilter.dropdown('refreshItems');
```

Other code blocks are refactored by the way.


![image](https://github.com/go-gitea/gitea/assets/2114189/74989996-fcea-4df4-b534-b06f7957939a)


![image](https://github.com/go-gitea/gitea/assets/2114189/ee3b3761-b96e-4fb5-b646-e9d3117e5f40)
2023-06-18 17:33:12 +00:00
..
2023-06-18 17:33:12 +00:00
2023-06-18 17:33:12 +00:00