Add an audio-only mode

[Jeehut]

While the app works fine on iPads (with their large screens) and at home (where no one can judge you based on the fact that you're reading from a screen), there should also be an audio-only mode. This will allow users to use the app with their phone given they wear (bluetooth) headphones. Synthesized voices could be used to read out the texts.

This would also open up the app for an entirely new group of people sight-impaired people who might struggle with other methods of learning prayers and doing them. Prayers should be as accessible as possible. So the rest of the app should also be checked for accessibility support as part of this.