Alfred for Mac

What's new in this version:

- macOS Catalina improvements
- Add potential workarounds to Catalina screen coordinates bug making Alfred's window appear temporarily outside of the visible viewport when connecting a second display
- Correctly locate Desktop backgrounds to display in Alfred's theme editor on Catalina
- Update Workflow templates sub-menu from iTunes to Music.app on Catalina
- Update build environment to Xcode 11
- Add in Workflow list filter option to only show disabled Workflows
- Fix event threading issues in Snippet Manager which can cause unwanted Alfred behaviour with Snippet Expansion enabled when using fn+arrow keys
- Fix edit Snippet and Snippet Collection edit sheets to correctly show if Alfred's preferences window doesn't have focus when selecting the context menu item