Replaces org.kde.plasma.systemtray with io.gitgud.wackyideas.systemtray.
The plasmoid now also needs to be compiled, and is also now the default
for ATP's session and layout templates.
This version of the system tray is also searchable in the gadgets window
for easier layout management. Everything else about the tray should be
largely the same as it was before.
This is a big update which requires existing users to migrate their
desktop setup (Plasmoids, their configurations, layout changes, etc.) to
a new desktop session.
This commit replaces the modified desktop shell (org.kde.plasma.desktop)
with ATP's shell (io.gitgud.wackyideas.desktop) which requires new
session options. This is similar to how plasma-bigscreen and
plasma-mobile are used - logging into a separate session via the login
manager (SDDM). ATP will provide sessions for both X11 and Wayland.
This, along with now providing a forked panel as well, is a step forward
regarding separating ATP's codebase and KDE's upstream code. Further
goals are to be able to further isolate the ATP session from the regular
KDE session in terms of shared configurations, etc.
For existing users - Rerun install_plasmoids.sh and
install_plasma_components.sh, you can delete the old shell
(shells/org.kde.plasma.desktop) and panel plasmoid
(plasmoids/org.kde.panel). As mentioned previously, panel and desktop
layouts, plasmoids and their configurations will not be migrated to the
newly available sessions, so they need to be set up manually.
