Add ability to close the transcribing window

Background: Sometimes transcribing takes a long time to happen and you want to be able to get on with other tasks like read other notes or record another note. Feature Description: It would be great if you could add a close x or other way of returning to your notes while the transcription happens in the background. Benefits/Rationale: It would allow continuous work, often I need to take multiple notes and when they're longer they take time to transcribe. Potential Implementation: An x in the top of the screen would do it.