Wagtail-cjkcms

Added
- API endpoint to allow remote monitoring of software component versions. Disabled by default. See /docs/api/version_monitor.md for details

Changed
- MDBootstrap kit updated to 7.3.0
- Restored availability of MDBootstrap CDN ich choice of Bootstrap themes
- Updated dropdown init code in base_link_block to work with MDBootstrap 7.3.0+
Fixed
- Dark theme was incorrectly forced when MDB was in use; now respects the choice in backend->settings->layout

Added
- Support for custom bs/mdb variables: when layout->theme set to "custom", loads /static/cjkcms/css/cjkcms-custom-theme.css. Define this file in your project using e.g. template copied from /static/cjkcms/css/cjkcms-custom-theme-disabled.css and redefine any css vars
- Support for stretched-link in any Button Link, including in any card. To achieve a stretched link, add "stretched-link" to custom css classes in button's advanced settings. To achieve an invisible button link (e.g. image link), add "stretched-link zero-sized" to custom css of the button.

Added
- Correct processing of theme_css and theme_js for both full URLs (https:...) and local static paths (local/path/to.css)
- Support for client-side theme switching in both bootstrap and mdbootstrap
Fixed
- Problem with stretched-link not working in mdbootstrap when btn class used (required updating mdb-uikit to 7.x)
Changed
- MDB light and dark now packaged with the CMS, not loaded from CDN
- !!! Breaking change: navbar_color_scheme setting renamed to color_scheme and used as data-mdb/bs-theme setting for theme switching
- !!! Breaking configuration changes in Layout settings: navbar_collapse_mode, navbar_format, navbar_langselector and frontend_theme:
changed choices in the model from None to [], this may result in re-setting these settings in Backend->Settings->Layout to defaults.
Check each website after updating the CMS for layout of the HP, navbar collapse screen width, and theme layout.

Fixed
- Renamed "libs" to "cjkcms_libs" in frontend scripts, to avoid name clash with htmx
Note: turns out, this was a misdiagnosed issue, there was no clash. But, it is better to have a more specific variable name,
rather than a generic "libs", so we'll keep this change.

Added
- Missing social media fields in settings/social-media, and icons, including new X to replace Twitter
- Updated fontawesome CDN call to v.6.5.1 to include new X icon.