Support custom emoji reactions

Summary by CodeRabbit

• New Features
  • Consolidated status reaction functionality now offers a more intuitive experience for adding, removing, and viewing emoji responses.
  • Enhanced support for custom emoji reactions delivers richer visual feedback when engaging with posts.
  • New routes for handling Pleroma statuses have been introduced.
  • Added a new feature for handling custom emoji reactions in the application.
• Bug Fixes
  • Improved handling of emoji reactions ensures accurate processing and representation.
• Refactor
  • Optimized reaction processing and display ensures improved reliability and performance in managing interactions.
• Tests
  • Introduced comprehensive unit tests for the new Pleroma statuses route and emoji handling functionalities.
  • Added unit tests for parsing emoji inputs to ensure correct functionality.
  • Updated tests to validate the handling of reactions, including custom emojis.