Fixes#886 - The content area in `<main>` was hardcoded to `hx:max-w-6xl`
(72rem), ignoring the `params.page.width` setting. Added a new CSS
variable `--hextra-max-content-width` that responds to the page width
config, so users can now get full-width or wide content as expected.
* feat(glossary): provide basic term glossary
Enabled a site-wide terminology glossary.
* Added the `term` shortcode displaying term definition.
* Added the /glossary page showing all term definitions.
* Enabled a simplistic search of term definitions.
* refactor(glossary): update glossary page links and add callout for Hugo support
- Removed the glossary entry from the menu and adjusted weights for subsequent items.
- Added informational callouts in the glossary documentation for multiple languages, directing users to the Hugo Glossary Quick Reference.
- Updated links in the glossary documentation to point to the correct pages.
* fix(glossary): update links to glossary page format across multiple languages
- Changed links in the glossary documentation to use Hugo's relref format for consistency.
- Updated links in Persian, Japanese, English, and Simplified Chinese glossary pages.
---------
Co-authored-by: Xin <5097752+imfing@users.noreply.github.com>
Co-authored-by: Xin <xin@imfing.com>
