Lint fix release for Obsidian official theme review.
Changes:
- Remove CSS :has() selectors from completed task styling.
- Keep nested child task content readable in Reading View.
- Keep the injected snippet synchronized with theme.css.
Validation:
- Verified no :has selectors remain in repository CSS/docs.
- Verified theme.css matches inject-kami-snippet.js.
- Verified manifest.json and data-theme.json parse correctly.
- Verified inject-kami-snippet.js parses with Node.