feat(youtrack-app): add JetBrains YouTrack App schema

[skoch13]

No description provided.

[github-actions]

Thanks for the PR!

This section of the codebase is owned by @madskristensen and @hyperupcall - if they write a comment saying "LGTM" then it will be merged.

[hyperupcall]

Thanks!

Just a heads up, there are already several other schemas in the catalog that match manifest.json, so it's likely that the schema won't automatically be inferred by file name. Usually, we never allow fileMatches to conflict for this reason, but manifest.json is something that always has been messed up so I'll be able to merge this. (these types of issues are tracked by #3658 and partially #3965).

Another heads up, there seems to be an issue when GitHub teams are specified in the CODEOWNERS file. There is more information in this comment, but if I recall correctly, the issue is that valid permissions/authentication is required to access the team members of a particular team. So until that is fixed it might be good to specify usernames as well.

cc @skoch13

[skoch13]

Thank you!

Just a heads up, there are already several other schemas in the catalog that match manifest.json.

Got it. I'll omit fileMatch completely then.

Another heads up, there seems to be an issue when GitHub teams are specified in the CODEOWNERS file.

The team I initially specified is public; however, we're good to specify particular usernames instead to proceed.

Once again, thank you for the detailed reply and your work!

[hyperupcall]

Once again, thank you for the detailed reply and your work!

You're welcome!