Fix known issues

1. Fixed known issues
2. Optimized logic processing

1. Interface adjustments and optimizations

2. Fixes for known issues and logic optimizations

1. Optimize logic
2. Modify UI interface

1. Fixed known bugs
2. Optimized logic

1. Optimized the logic for keyboard themes and stickers
2. Added the function to download stickers separately

1.Fix known issues

1.Fix known issues

1. Fixed known issues
2. Optimized business logic
3. Added a new user onboarding page

1.Update keyboard skins, fonts and stickers.
2.Modify the bug and optimize the logic.
3.Interface optimization.

1. Updated page
2. Added new skins
3. Optimized business logic
4. Fixed known bugs