fixed preview workflow and added current version in navbar!

[shravanngoswamii]

1. Now, previews will not get deleted until PR is either merged or closed!
2. Nav bar have current version along with a link to changelog and versions file!
   

closes #473

[github-actions]

Preview the changes: https://turinglang.org/docs/pr-previews/488, Please avoid using the search feature and navigation bar in PR previews!

[yebai]

Thanks, @shravanngoswamii -- it looks good; can you remove the relevant links in the left navigation bar now that they are in the top menu?

[shravanngoswamii]

can you remove the relevant links in the left navigation bar now that they are in the top menu?

That's nice but if we do not keep them in sidebar then sidebar will not be there when someone visits changelog or versions file, Is that fine?

[yebai]

That's nice but if we do not keep them in sidebar then sidebar will not be there when someone visits changelog or versions file, Is that fine?

See quarto-dev/quarto-cli#3951 (reply in thread)

[shravanngoswamii]

@yebai It's done!

Now, we just have to mention minor version in _quarto.yml like v0.32, v0.33 and it will automatically detect the latest bug-fix of that version and publishes site to it and if the version is latest then it publishes site to latest bug-fix version!
If the version in _quarto.yml is old and someone opens a PR, then vcheck.yml will suggest changing to latest in PR! I have changed the suggestion workflow because the previous one is not working properly, it was suggesting the lines that are not even changed!

See shravanngoswamii#83 for our example of our current suggestion workflow!

Edit: only issue is, if we update any old version, then PR should be from some branch of original repo and not a fork!

[shravanngoswamii]

I have opened a PR for library.qmd in our main site's repo — TuringLang/turinglang.github.io#82

[yebai]

Many thanks @shravanngoswamii!

[shravanngoswamii]

It's my pleasure, I have learned a lot of things while making Turing's site, so thanks a lot to you for this opportunity!!