Fixed known issues and improved app stability

Fixed known issues and improved stability

Performance improvements make your experience smoother.

Fixed the issue that the font may fail to install

Fixed the issue that the font may fail to install;

Optimize font installation process

Fixed known issues and optimized the experience;

Fixed an issue that may crash on iOS 13.0

Now you can use the system sharing tool to import fonts from other apps;

Fixed an issue where help pages might crash

Optimize the experience and fix some bugs