*Second in series after https://invent.kde.org/plasma/plasma-workspace-wallpapers/-/merge_requests/17*
Another patch will follow from the translations SVN, after I figure out how to work with it.
In kwin repo alone, there's another 4MB in savings with funny files like those:
```
kwin/po/ru/docs/kcontrol/windowspecific/tbird-reminder-info.png
[oxipng] Reduced by 768.94 KB (-96.42%) from 797.52 KB
```
Summary:
All other KCMs have their {nav Get New [things]...} buttons in the bottom-right corner. This patch adjusts KWin's KCMs to adopt the same convention there too.
With this patch, all KCMs will have their GHNS buttons in the same location.
Closes T9954
Test Plan:
{F6375278}
{F6375277}
{F6375276}
{F6375275}
Reviewers: #kwin, #vdg, zzag
Reviewed By: #kwin, zzag
Subscribers: Codezela, kwin, kde-doc-english
Tags: #kwin, #documentation
Maniphest Tasks: T9954
Differential Revision: https://phabricator.kde.org/D16537
