UI/UX improvements and search enhancements

[danielspofford]

Core Search & Navigation

• Add comprehensive search functionality with three indicator types:
  • Direct hit: property matches search directly
  • Indirect hit: property contains nested matches
  • Both hit: property matches directly AND has nested matches
• Implement keyboard shortcuts modal with comprehensive help
• Add search examples support (configurable via settings)
• Enhance hash-based navigation with proper pattern property support
• Add keyboard shortcut for search (press 's'), examples toggle ('e')
• Add search hit visual indicators with color-coded feedback
• Add examples hidden indicator when examples are toggled off

Component Architecture

• Add new Modal and KeyboardModal components for better UX
• Enhance Tooltip component with long-press support and focus management
• Improve OneOfSelector with search hit indicators and better styling
• Refactor AllOfSelector to properly merge properties without 'allof' paths
• Add Badge variants for custom types and default values

Schema Processing

• Fix allOf pattern property extraction and path generation
• Improve schema resolution with proper $ref handling and allOf merging
• Add enum ID detection and custom enum badge styling
• Enhance pattern property rendering with correct path structures
• Preserve original $ref information for better enum descriptions

Settings & Configuration

• Add search includes examples option to settings
• Restructure settings modal using new Modal component
• Improve settings persistence and option management
• Add keyboard shortcuts help integration

Testing

• Add comprehensive test suite covering search functionality
• Add AllOf fix validation tests
• Add utility function tests for hash conversion and schema type detection
• Add real-world schema testing scenarios

Developer Experience

• Improve TypeScript types and error handling
• Add proper prop validation and default values
• Enhance code organization and component separation
• Add extensive JSDoc comments for utility functions

Bug Fixes

• Fix pattern property navigation and anchor generation
• Resolve AllOf property duplication issues
• Correct search result filtering and expansion logic
• Fix tooltip interaction and focus management
• Resolve CSS selector conflicts and specificity issues

ESLint & GitHub Actions

• Tighten ESLint rules: convert warnings to errors for better code quality
• Update GitHub workflow triggers to use only 'main' branch
• Enable strict TypeScript unused locals/parameters checking