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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| .. | ||
| components | ||
| features | ||
| markup | ||
| modules | ||
| render | ||
| standalone | ||
| test | ||
| utils | ||
| webcomponents | ||
| bootstrap.js | ||
| index.js | ||
| jquery.js | ||
| svg.js | ||
| svg.test.js | ||
| utils.js | ||
| utils.test.js | ||