Fix multiple UI/UX issues with cloud-init scripts management:
1. Fix card styling - Remove purple box background, use simple border
- Changed from .box class to inline flex/border styling
- Matches cloud provider tokens styling pattern
2. Remove script preview section
- Preview was taking too much space and looked cluttered
- Users can edit to see full script content
3. Make edit modal full width
- Added fullWidth attribute to x-modal-input component
- Provides better editing experience for long scripts
4. Fix fields clearing after update
- Fields were being reset even in edit mode
- Now only reset fields when creating new script
- Edit mode preserves values after save
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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