kde/*: cleanups and updated git-based packages

All packages are now built as RelWithDebugInfo rather than Release. This should make debugging these packages easier.

I've also updated all Plasma packages without releases (git-based) to their latest masters. plasma-angelfish now has it's first release, and a new dependency purpose.

Calindori had a typo in the pkgver causing it to look like it was released in the 30th month of the year. Because of this, the old package will have to explicitly be removed from the repository. Let's hope no one uses that package yet, or they will have to wait till 2020 before it'll get updated again on their system lol.