Add WYSIWYG editor on milestone form

[Cypouz]

• Gitea version (or commit ref): 1.13.4
• Git version: 2.20.1
• Operating system: Debian 10, using binary package from Gitea, running with systemd.
• Database:
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (https://try.gitea.io/Cypouz/Test/milestone/1335)
  • No
• Log gist:

Description

Milestone form doesn't propose a WYSIWYG form like the one proposed by Issue form.

Screenshots

[lunny]

Even github didn't do that. Is this necessary?

[silverwind]

I think it's fine for this to stay plaintext. ideally with a markdown preview tab, but that should be part of a future editor component, not added manually to this template.

[silverwind]

Since #23876 we default to plaintext editor, so this is not planned.

[wxiaoguang]

I guess we can keep this open , and introduce the new editor to the milestone page?

At the moment, there is only a simple textarea, no toolbar, no preview

[silverwind]

Yes, all places that allow Markdown and generally hold more than 1 line of content could use the new editor. There are many such places in Gitea UI.

I guess it needs to be evaluated where it makes sense to have the full editor. Org description is one such example where I would not use it, despite multiline content.

[wxiaoguang]

Agree, markdown editor could help with long text editing, like comment, release description, so milestone description is similar.

Org/user description is usually not that long, so a simple textarea is enough.