[MBraille-Test] v0.9.34 and another round

Hi, This one focuses just on making the external keyboard mode work better on iOS. On Android it was already good at least based on my brief testing. I'm still not sure if iOS VoiceOver focus lands at the text field, despite multiple attempts at this. At the moment I don't have external bluetooth keyboard at hand, so I cannot test that myself thoroughly. Best regards, Harri