Change: Upgraded to .NET 6 framework (OS support is now Win7-SP1 and higher except these versions of Windows which are not able to run .NET 6: 8.0, Win10-1507(RTM), Win10-1511)
Change: Added a dark theme for the UI
Fix: Reduced startup time
Fix: Resolved an issue that caused timers to freeze sometimes
Fix: Macro toggle key now releases on second command correctly
