feat: q syntax files (#14072)

Author: benlubas

news/changelog-1.9.md

@@ -45,6 +45,7 @@ All changes included in 1.9:
 
 ### `html`
 
+- ([#14072](https://github.com/quarto-dev/quarto-cli/pull/14072)): Add q syntax files
 - ([#11929](https://github.com/quarto-dev/quarto-cli/issues/11929)): Import all `brand.typography.fonts` in CSS, whether or not fonts are referenced by typography elements.
 - ([#13413](https://github.com/quarto-dev/quarto-cli/issues/13413)): Fix uncentered play button in `video` shortcodes from cross-reference divs. (author: @bruvellu)
 - ([#13508](https://github.com/quarto-dev/quarto-cli/issues/13508)): Add `aria-label` support to `video` shortcode for improved accessibility.