fix: sync show gitlab issue detail #2115

[hosseinkhaledi]

Description

Use gitlab issue id instead of iid

Issues Resolved

#2115

Check List

• New functionality includes testing.
• New functionality has been documented in the README if applicable.

[github-actions]

Hello there hosseinkhaledi! 👋

Thank you and congrats 🎉 for opening your first PR on this project! ✨ 💖

We will try to review it soon!

[johannesjo]

Thanks you very much for providing this PR! There is a merge conflict. Can you maybe take a look at it?

[lazybobcat]

@hosseinkhaledi May I ask why this change, especially in the case of getting the issue details?

The GitLab API URL without the iid (GET /issues/:id) is reserved for administrator. The other API URL (GET /projects/:id/issues/:issue_iid) requires the iid. (documentation)

We maybe could also use issue._links.self that contains the URL (it's used in _getIssueComments$)?

I can implement a fix, but since I'm not familiar with this project nor Gitlab API, I don't wanna break anything.