Large-scale Code Refactoring for Better Architecture

[babarot]

This PR introduces a significant refactoring of the codebase to improve maintainability and code organization.

Major Architectural Changes

File Organization

• Split UI logic into domain-specific files:
  • model.go: Core model definitions and initialization
  • commands.go: Command-related functions
  • messages.go: Message type definitions
  • view.go, view_detail.go, view_confirm.go: View-specific rendering logic
  • state.go: State management
  • update.go: Update logic for different view states

Key Architecture Improvements

• Introduced a dedicated ViewState struct for better state management
• Consolidated key mappings into a unified system in keymap.go
• Reorganized styles with a more structured approach in styles.go
• Separated view rendering logic by responsibility

Code Structure

• Clearer separation of concerns between:
  • State management
  • View rendering
  • Event handling
  • Command execution
• More modular and testable components
• Better type definitions and error handling

Benefits

• Improved code maintainability
• Clearer component boundaries
• Easier to extend and modify individual parts
• Better organized and more predictable state management
• More consistent code structure across the application

This refactoring lays a stronger foundation for future feature development and maintenance.