Improve "Package removal" dialog wording
Improve the wording of the "package removal" dialog to feel a bit more natural and introduce less uncertainty.
The list of packages should also be alphabetically sorted, but I couldn't figure out how to do that right now and will do it in a follow-up patch.
Reviewers: Discover Software Store, apol
Reviewed By: Discover Software Store, apol
Differential Revision: https://phabricator.kde.org/D10992