This commit removes shortcuts to KDE Discover from
the default menus of the default Plasma Desktop
installation in NixOS. Right now, in for example
the official NixOS 23.05 Plasma Desktop ISO (as
well as other installation vectors), a broken KDE
Discover link is included in the default toolbar
and other places, leading to a worse user experience,
since NixOS intentionally does not ship the
Plasma Desktop with KDE Discover.
Confirmed working through building an ISO.
this commit lets kaccess to read screen reader settings[1] using
gsettings by adding required gsettings schemas dirs to the $XDG_DATA_DIRS
this commit also refactors previus gsettings schemas fix of kcm_access
for allowing reuse of wrapped gsettings between kaccess and kcm_access
Nix expressions provide all the features that Quilt series files have,
so using those instead is pointless. Also, lib.readPathsFromFile
(the function used to read series files) has the following warning:
> NOTE: This function is not performant and should be avoided.
This also removes some orphaned series files, and unused references to
copyPathsToStore (which were probably missed in previous commits
where calls to lib.readPathsFromFile were removed)
