This MR includes:

• A few small improvements to the reliability on linux:
  • Remove RtMidi references (not linux compatible)
  • Use async/await instead of blocking the thread during device connection
• Small bugfix: "first tap" logic wasn't working correctly due to _lastTick never being null. changing to DateTime? instead of DateTime ensures the check works
• Update to .net 10.0
• Small UX improvement: use numbers to select the MIDI device, instead of typing it out, e.g.:

Choose primary input device:
[1]: Midi Through Port-0
[2]: USB MIDI Interface
[3]: X-Touch  
[4]: X-Touch-ext
Enter number [1]: _