[desktoppackage] Re-add spacing between inline message and first UI element
Summary:
This patch fixes the lack of spacing between the inline message that shows up when widgets and locked and the first UI element present in the layout.
Included is also one minor wrong title case fix.
BUG: 408712
Subscribers: plasma-devel
Tags: Plasma
Differential Revision: https://phabricator.kde.org/D21810