v0.4

Major improvements on command finding:

• now additionally uses the sandboxed_app_id (for flatpaks, snaps) which makes finding desktop files much easier for those cases
• using string simmilarity to try to rule out nonsense alternative wm classes and try to use the best fitting desktop file
• added additional desktop entry location for more possiblilities to find the correct one
• more robust command extraction from /proc that tries to combat programms writing to argv
• using gio to launch desktop files instead of extracting the command manually

Requires Clueliss/windowctl v0.2.