feat(glossy): terms now link to glossary entries

- Merges [16](https://github.com/swaits/typst-collection/pull/16).
- Fixes [3](https://github.com/swaits/typst-collection/issues/3).

A big PR from [@eltos](https://github.com/eltos)!

This adds labels for each `key`, so that auto-complete (in the typst.app
/ `typst-ide`) works properly. It also makes it so terms can link to
their glossary entry. In the case that terms are used but no glossary is
shown (which is a core feature of Glossy), placeholder labels are used
so that the auto-complete still works.

All tests, but one (theme-gallery), passed straight from the PR. The
ddiff in the `theme-gallery` test were non-visible (ie a few pixels),
making it effectively passing too. Updated that test so it passes, and
updated the theme screenshot to match its output as well.

Huge thanks to [@eltos](https://github.com/eltos) who demonstrates a
deep understanding of Typst!

.build.yml

@@ -7,5 +7,7 @@ tasks:
   - mirror-to-github: |
       cd ~/typst-collection
       ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts
+      # Explicitly fetch all branches & tags
+      git fetch origin '+refs/heads/*:refs/heads/*' '+refs/tags/*:refs/tags/*' --prune
       git remote add github git@github.com:swaits/typst-collection.git
       git push --mirror github

README.md

@@ -2,7 +2,7 @@
 
 A collection of `typst` templates and packages by [swaits](https://swaits.com/about).
 
-Everything in this collections is available for use at the [`typst`
+Everything in this collection is available for use at the [`typst`
 universe](https://typst.app/universe/). For details on each, please visit the
 links below to their main page.
 
@@ -15,6 +15,8 @@ links below to their main page.
   glossary system with easily customizable output.
 - [**rfc-vibe**](https://typst.app/universe/package/rfc-vibe): Bring RFC language
   into everyday docs.
+- [**swank-tex**](https://typst.app/universe/package/swank-tex): Render those
+  funky logos for TeX, LaTeX, and friends.
 
 ## Templates