Polish Sentence Master

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v6.3:
- Improve search feature
- Fix data error
- Support sentence translation in native languages
v6.2: Improve quiz: Smarter quiz o
ptions
v6.1: Hot-fix: Can not play audio issue on Android 10.
v6.0:
- Allow listening & practice selected groups.
- New stunning theme colors
- Learning targets: New feature to help the user keep track of your progress
- Many bugs fixed: Ex. The issue in 'Play all' feature