This is in preparation of migrating the config module

If at all this needs to be reimplemented with libsoup

when new config is generated

Presets can be used instead

Fixes #10201

- Hide update check on linux
- Remove Windows only tooltip
- Change order of elements

This adds Gdk.DragAction.MOVE to the drag_dest, enabling Gajim to process
dropped items from KDE notifications (for example). Fixes #9011

Fixes #10176