feat: add collapsible block type and enhance paragraph menu UX

- Added CollapsibleBlockComponent with registration in block host and columns
- Enhanced paragraph block with inline "+" button for column layouts and improved menu positioning
- Updated toggle block to support creating new toggle blocks below with dedicated event handlers
- Improved menu styling with fixed positioning, keyboard navigation (arrows, Enter, Escape), and focus management
- Simplified inline action handling by deleg
This commit is contained in:
2025-11-14 22:29:11 -05:00
parent 85d021b154
commit 9887be548e
21 changed files with 871 additions and 335 deletions
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