This commit is artificially built over the end-results of the Nixpkgs
PR https://github.com/NixOS/nixpkgs/pull/170466 with the package now
being built in the way Plasma Mobile Gear packages are built.
Main differences:
- `mkDerivation` from the Plasma Mobile Gear package set, and related
changes (dropping redundant wrapQtAppsHook).
- inputs re-ordered and split by usage like sibling packages.
The actual work though was by @matthiasbeyer, I only mechanically
rehashed the changes.
Co-authored-by: Matthias Beyer <mail@beyermatthias.de>
