Regression for width on pull request

[Gusted]

Description

It seems like that there is a regression since #21012, which added fluid padded classes, regardless of split mode being enabled. This is causing the whole UI to take up all the available width, is this something we really want? In my eyes this seems like a regression/bug, it might make sense for the diff to be full-width(we are copying Github's behavior??) but not the other elements, which is currently happening.

CC @silverwind

Gitea Version

94d6d93

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

Git Version

No response

Operating System

No response

How are you running Gitea?

Not relevant

Database

SQLite

[silverwind]

Yes I think we should restore old width again. Only split diffs need more width, but I think that was already handled previously.