Summary:
The "Candy" category suffers from some problems:
- It does not need to exist; everything in it is purely appearance-related and could live in the existing "Appearance" category
- The name is inappropriate; "Eye Candy" would be better, but changing it to this has proven controversial in the past
Let's just remove the category and move everything in it into the "Appearance" category.
Test Plan:
Apply and compile
Open Desktop Effects KCM
See that the "Candy" category is no more and the "Appearance" category has more stuff in it
Reviewers: #kwin, #vdg, zzag, abetts
Reviewed By: #kwin, #vdg, zzag, abetts
Subscribers: abetts, zzag, kwin, kde-doc-english, GB_2
Tags: #kwin, #documentation
Differential Revision: https://phabricator.kde.org/D27658
