Add UI hints to create a Wiki sidebar and footer

[n194]

Description

Mentioned in #16719 and lost in #16655, this issue is about adding UI hints on the Wiki from which a user with edit access can quickly create a sidebar or footer.

Screenshot from GitHub

[zeripath]

This would be a simple change to templates/repo/wiki/view.tmpl around line 63 + change to options/locale/locale_en-US.ini for localisation.

[n194]

@zeripath how do you open the Wiki editor with a pre-defined page name?

[zeripath]

ah you want to add that...

that would need a change to routers/web/repo/wiki.go:NewWiki()

Probably as simple as adding:

if ctx.Form("title") != "" {
  ctx.Data["title"] = ctx.Form("title")
}

then you'd need to add ?title=... to the url