- Added AddSourceModal for adding new video sources with validation.
- Introduced ExportModal for exporting settings and history options.
- Created ImportModal for importing settings from JSON files.
- Developed SourceManager for managing video sources, including enabling/disabling, deleting, and reordering.
- Established settings store to manage application settings, including default sources and sorting options.
- Implemented sorting utility functions for video search results based on various criteria.
- Deleted accessibility index file and related exports.
- Removed `useClickOutside` and `useClickOutsideMultiple` hooks for handling outside clicks.
- Eliminated `useSearchStream` hook and its associated logic for managing search state.
- Cleaned up `useMediaQuery` by removing predefined breakpoints and related utility hooks.
- Removed `source-checker` utility for checking video source availability.
- Refactored `client.ts` to simplify error handling and remove unused functions.
- Streamlined `video-sources.ts` by removing custom source management functions.
- Deleted `search-history-store.ts` and related search history management logic.
- Removed unused types and interfaces from `types/index.ts`.
- Cleaned up search utilities, focusing on relevance scoring and optimization.
- Deleted error-handler.ts, m3u8-filter.ts, progress-tracker.ts, source-switcher.ts, url-validator.ts, and test-contrast.ts as they are no longer needed in the project.