Fixed two UI issues in the navigation header:
1. **Navbar Alignment**: Added CSS to remove margin/padding from forms in the
header to ensure the Tutorials button (created with button_to) aligns
properly with other navbar items like font size controls and user dropdown.
2. **Font Size Toggle**: Added data-turbolinks="false" to font size control
links to force full page reload. Previously, clicking the small font button
wouldn't apply changes until manual refresh due to Turbolinks caching. Now
both font size buttons work immediately.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Ken Johnson
2cc86dd271