Setting XCURSOR_THEME messes up custom cursor theme overrides, so let's set the Cosmic cursor theme another way in distros and such
Signed-off-by: Ryan Brue <ryanbrue.dev@gmail.com>
This causes the cosmic-session to have a separate
writable dconf-database (while still inheriting
the default user database).
This will (partially) prevent issues such as
https://github.com/pop-os/cosmic-epoch/issues/1174
in the future, as other desktops won't pick up
cosmic's dconf profile.
This makes sure together with our XSettings implementation in cosmic-comp,
that QT apps running on their xcb backend will react to the DPI values
we are setting by changing their internal scaling.
