Version 5.1.0

Quick update with various improvements:
- Session audio: fully customizable cues and improved audio guidance.
- Options for haptic feedback and showing audio cues as text.
- Duplicate exercises are properly taken into account for PRs.
- Better exercise selection when using Upper body, Core or Lower body objective categories.
- Add information about how to set up timed workouts (EMOM, AMRAP, HIIT, Tabata).
- Slight battery usage improvement during Sessions.
- Make text visible in long descriptions for Routines.
- Correctly limit exercise selection in a few edge cases.
- Remove extra PRs when creating a past Session from a Routine.
- Various small fixes in the calendar and scheduling.

Enjoy your training this week.