fix bug

Fixed some issues

- Fix known bugs.
- Optimize code structure and UI interaction to improve app performance.

- New bookstore module, more than 1000 popular books

- New paid reading function

- Fix user feedback problems

We changed the app name and redesigned the app icon and user interface.

Book Reader expresses joyfulness happens among readers as always. Our team hopes readers will enjoy this brand-new style and wishes for a happy reading experience here.

Optimize APP performance and prompt user experience

1. Optimize UI interaction and improve app performance

2. Fix some known bugs

1. Fixes minor bug autolayout
2. Improvement performance