bfab129fb9
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.
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| .. | ||
| chroma | ||
| codemirror | ||
| editor | ||
| features | ||
| markup | ||
| modules | ||
| repo | ||
| shared | ||
| standalone | ||
| themes | ||
| actions.css | ||
| admin.css | ||
| base.css | ||
| dashboard.css | ||
| explore.css | ||
| font_i18n.css | ||
| form.css | ||
| helpers.css | ||
| home.css | ||
| index.css | ||
| install.css | ||
| org.css | ||
| repo.css | ||
| review.css | ||
| user.css | ||