Add missing info about how to edit navigation bar, add many-to-many
relation and get Enterprise key for Org license on self-hosted
---------
Co-authored-by: Charles Bochet <charles@twenty.com>
## Summary
- **New Getting Started section** with quickstart guide and restructured
navigation
- **Halftone-style illustrations** for User Guide and Developer
introduction cards using a Canvas 2D filter script
- **Removed hero images** (`image:` frontmatter + `<Frame><img>` blocks)
from all user-guide article pages
- **Cleaned up translations** (13 languages): removed hero images and
updated introduction cards to use halftone style
- **Cleaned up twenty-ui pages**: removed outdated hero images from
component docs
- **Deleted orphaned images**: `table.png`, `kanban.png`
- **Developer page**: fixed duplicate icon, switched to 3-column layout
## Test plan
- [ ] Verify docs site builds without errors
- [ ] Check User Guide introduction page renders halftone card images in
both light and dark mode
- [ ] Check Developer introduction page renders 3-column layout with
distinct icons
- [ ] Confirm article pages no longer show hero images at the top
- [ ] Spot-check a few translated pages to ensure hero images are
removed
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: github-actions <github-actions@twenty.com>