🐞 `attribute` missing from themes

### Description

Our themes don't find the `attribute` syntax capture in HTML docs:
```html
<script async src="https://example.com"></script>
```
The `async` and `src` should have highlights, and are being found by tree-sitter but don't have a related color in themes.

### Version Information

CodeEdit: 0.3.1
macOS: 15.1
Xcode: 16.1
