Joakim 01c8dcca76 feat: Implement dynamic style preview buttons ...

- Add JavaScript-based style copying from original elements to toolbar buttons
- Use getComputedStyle() to dynamically apply color, font-weight, text-decoration, text-transform
- Preserve button clickability with protected backgrounds and hover states
- Support any CSS framework/custom styles without hardcoded mappings
- Add comprehensive documentation to TODO.md for future enhancements

Examples:
- 'Emphasis' button now shows red bold text (from .emph class)
- 'Highlight' button displays with style preview while remaining clickable
- 'Brand' button demonstrates text-transform and color changes

This provides intuitive visual feedback so users immediately understand
what each formatting button will do to their content.

2025-09-19 20:48:01 +02:00

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