manual: resolve linkgit in glossary data for links in tooltips

[pzhlkj6612]

Changes

(Copied from the commit message)

• Construct glossay JSON files by Hugo:
  • Move "#{lang}.json" from "static/js/glossary/" to "external/docs/data/glossary/"
  • Create simple documents to pass the language code at "external/docs/content/js/glossary/#{lang}.html"
  • Create a simple template "layouts/js/glossary/single.json.json"
• Add two Playwright test cases.
• CI
  • Forget "static/js/glossary".
  • Do not check absolute URLs in generated glossay JSON. It didn't work before because of escaped double quotes: href=\"/.
• Skip some files for consistency:
  • external/docs/data/docs.json
  • external/docs/data/glossary/#{lang}.json

Context

Hello!

The "git-foo[1]" links in tooltips are broken. I've fixed it with some help. I use AI, and I've written and tested this for serveral days. I can answer questions.

I have not committed changes in "external/docs/data/docs.json" and "external/docs/data/glossary/#{lang}.json" because:

• I don't want to make this PR too huge.
• There are CI workflows to update them later.

Here is a screenshots for comparison:

.

After making the changes, commit and push to a named branch in your fork, then open a pull request. If it is a big feature, you might want to start an issue first to make sure it's something that will be accepted.

Sorry. I thought: is it feasible? Then, tried several ways and finally it works and the implementation looks not so ugly to me.

Please review, thank you in advance.

[pzhlkj6612]

I have not committed changes in "external/docs/data/docs.json" and "external/docs/data/glossary/#{lang}.json" because:

• I don't want to make this PR too huge.
• There are CI workflows to update them later.

I've run those two workflows "Synchronize with new Git version (if any)" and "Update translated manual pages", and finally get a lot of changes, where:

• Synchronize with new Git version (if any): 2 files +15 -15 lines changed
• Update translated manual pages: 54 files +418 -418 lines changed

https://github.com/git/git-scm.com/blob/c0b7cfc55fe6ad45a46d050cd54e885c69e1f7b9/external/docs/sync/git-html-l10n.sha matches the latest l10n commit: jnavila/git-html-l10n@43e818f. That said, we've forgot to RERUN those two scripts for a while. Now let me merge that two generated commits, and then CI should be green.