Step exercise timer

Jan 16, 2024

v1.22.0 (2023-11-20)
Improvement
- Added a new stepping time of one minute.
- Added a new tempo of 110 steps per minute.

v1.21.0 (2023-10-04)
Improvement
- Some internal libraries have been upgraded.

v1.20.0 (2023-07-27)
Improvement
- Added a dialog to change the volume of the guide sound.

v1.19.0 (2023-06-08)
Improvement
- Added a themed app icon for Android 13 or later.

v1.18.0 (2023-02-03)
Improvement
- Android 13 support has been improved.