Your task is to create a Currency Exchange app using BLoC.

1. Correct Structure: Ensure that the application is built with the appropriate structure. Follow Flutter's best practices for organizing code and project files.

2. Code Quality:

   • The project code should follow Flutter's best practices for organizing code and project files.
   • Your code should be clean, well-structured, and easy to understand.
   • Use meaningful variable and function names to enhance code readability.

3. Error Handling: Implement proper error handling mechanisms.