Changes and fixes:
- MunkiAdmin is now an universal app and runs natively on Apple Silicon
- Manifest editor now supports template conditions and showing conditions from other manifests
- Hide the (legacy) Catalogs view by default as it hasn't seen any updates in a long time and all of its functionality is available in Packages view.
- MunkiAdmin now requires macOS 10.13 or later
- Fix the display glitches in the main toolbar
- Update most of the icons (sidebars, toolbars, etc.) to use Apple SF Symbols
- Added new macOS version strings for autocomplete
- Added new package list column for supported architectures
- Initial support for custom manifest scripts
- Changed manifest list default visible columns
- Block receiving events in the main window while pkginfo editor is open
- Fix clipped text fields in manifest CSV import view
- Lots of changes and refactoring under the hood