Allow issues to be deleted

[Larivact]

• Gitea version (or commit ref): 1.7.0

Description

I think repository owners should be able to delete issues. For example to clean up accidentally created issues. GitHub supports this since November 7, 2018: https://help.github.com/articles/deleting-an-issue/.

[adelowo]

Sounds nice...

Looks like I have a handful of PRs to make today 🙏🙏

[davydov-vyacheslav]

looks like copy of #923 ;)

[lunny]

@techknowlogick but I think site administrators should have abilities to delete issues on admin panel to maintain the site.

[techknowlogick]

@lunny I agree. This issue was closed because it is a duplicate. I kept original open.

[adelowo]

@lunny GitHub has it's own on the issues page ( The sidebar). Should I follow that model or use the admin panel as you mentioned.

I hope to work on this during the weekend

[lunny]

@adelowo I think admin panel issues management is necessary and github's model could be a configuration that site admin could disable it.