[MU4 Issue] MIDI keyboard should automatically detected as input source without editing Preferences>I/O

[DmitryArefiev]

To Reproduce

1. Connect USB MIDI keyboard
2. Run MU
3. Select bat
4. Hit N
5. Play something on MIDI keyboard - nothing happens

(you should choose MIDI keyboard manually in Preferences>I/O>MIDI Input before the first use)

Expected behavior MIDI keyboard should be automatically detected

Platform information Win10/Mac12, Arturia KeyLab Essential 61

Additional context Doesn't occur in MU3

Don't know if that works with all MIDI USB keyboards that might have several items in the system.. But at least that works with my Arturia KeyLab Essential 61 (in MU3)

[Tantacrul]

I think this is a P1. MS3 users with MIDI keyboards would all be scratching their heads. Kept it targeted at Beta though. Thanks @DmitryArefiev !

[DmitryArefiev]

Fixed in #12877