Fixed critical UI closure issue in image section editing:
1. **Root Issue**: The `hideEditor()` method was not removing editor containers from DOM,
causing editing UI to remain visible after button clicks
2. **hideEditor() Enhancement**:
- Now properly removes both `.ui-edit-editor-container` and `.ui-edit-image-editor-container` from DOM
- Ensures complete UI cleanup when editors are closed
- Handles cases where no containers exist gracefully
3. **Button Behavior Fixes**:
- **Accept**: Saves alt text changes, accepts changes, and closes UI completely
- **Cancel**: Discards changes and closes UI completely
- **Reset**: Resets to original content, updates display, and closes UI completely
- All buttons now provide immediate visual feedback with complete UI closure
4. **Reset Button Logic Fix**:
- Removed reopening of image editor after reset (was keeping UI open)
- Now properly closes UI and shows reset content in display mode
- Provides better user experience with clear completion feedback
Added comprehensive test suite with 7 tests covering DOM manipulation and UI closure.
All image editing buttons now behave consistently with proper UI cleanup.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
