Refactor LaunchConfigEditor to be a widget which can target a local project and read/write to its metadata
Launcher: When going through active local projects, check their LaunchConfigs metadata and add them
Add per-project launch config editor to project settings
Show launcher settings on game and map projects, not just game
Update map/game ident to match project when writing new launch configs, don't show useless sheet properties
Add title / body to launch configs page