Fixed WordPress 7.0 editor preview failures for existing SimpleTOC blocks containing legacy editor-only attributes.
Changes:
- Registers legacy editor-only attributes as local block attributes for REST compatibility.
- Stops storing the redundant Hide SimpleTOC helper attribute from the editor toggle.
- Updates plugin version, WordPress.org stable tag, changelog, and build artifacts.
Validation:
- npm run build
- npm run lint-js
- npm run lint-css
- WordPress 7.0 REST block-renderer checks for hideTOC, sidebar_style, combined legacy attributes, and typical saved block attributes.