new home page, 10 reading themes and add book content quote share

1. Added book excerpt sharing feature
2. Added Dark/Light/Auto reading mode options
3. Added 10 reading themes
4. Optimized app theme color values to align with Material Design M3 guideline
5. Added Quick Read and Heatmap pages on the home screen; improved home screen layout and overall app display
6. Added quick rating & feedback pop-up entry
7. Fixed various issues