Dublicate AppSubUrl in context_menu template

Description

"Copy Link" in templates/repo/issue/view_content/context_menu.tmpl is constructed this way: data-clipboard-text="{{AppSubUrl}}{{$referenceUrl}}". It seems that {{AppSubUrl}} is redundant:

• $referenceUrl -> .ctxData.Issue.Link -> func (issue *Issue) Link() string
• func (issue *Issue) Link() string-> fmt.Sprintf("%s/%s/%d", issue.Repo.Link(), path, issue.Index)
• issue.Repo.Link() -> setting.AppSubURL + "/" + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)

As you can see there is already AppSubURL in referenceUrl so it looks like that it should be removed from the template.

Gitea Version

1.20

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

docker

Database

SQLite