Fixed modal showing backdrop but not the modal itself by explicitly
disposing old instances and adding a timing delay.
Changes:
- Dispose of existing modal instance before creating new one
- Create fresh modal with explicit options (backdrop, keyboard, focus)
- Add 10ms setTimeout before show() to ensure DOM readiness
- Remove getOrCreateInstance which was causing conflicts
The modal was creating a backdrop but staying display:none because
getOrCreateInstance was returning a stale modal instance that couldn't
properly transition. Disposing and recreating fixes this.
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Co-Authored-By: Claude <noreply@anthropic.com>
Ken Johnson
0c4533a88a