Step exercise timer

Aug 8, 2023

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.

v1.17.0 (2022-12-21)
New Feature:
- Chart images of exercise statistics can now be shared with other apps.
Fixed:
- Fixed an issue that could cause data import via the OneDrive app to fail.