refactor: extract common ratatui widgets into reusable components

[unhappychoice]

Current State

Multiple screens use similar ratatui widgets with repeated code patterns. Analysis shows common widgets used across:

• src/game/screens/analytics_screen.rs - Uses Block, Borders, List, ListItem, etc.
• src/game/screens/history_screen.rs - Similar widget patterns
• src/game/screens/session_detail_screen.rs - Overlapping widget usage

Common Patterns Identified

• Block with Borders styling
• List with ListItem creation
• Scrollbar with ScrollbarState
• Layout configurations
• Color and Style applications

Proposed Solution

Create a new module for common widgets:

• src/game/widgets/mod.rs - Main widgets module
• src/game/widgets/common_blocks.rs - Reusable Block components
• src/game/widgets/lists.rs - Common List patterns
• src/game/widgets/layouts.rs - Standard layout configurations

Benefits

• Reduced code duplication
• Consistent widget styling across screens
• Easier maintenance and updates
• Better separation of concerns

Implementation Steps

1. Identify exact common patterns
2. Create widget abstraction functions
3. Update existing screens to use common widgets
4. Add proper documentation and examples

[linear]

E-623 refactor: extract common ratatui widgets into reusable components