- Create IconPlex with play button symbol for Plex login button
- Create IconServer for server information display
- Create IconSync for library sync operations
- Replace inline SVGs with icon components in PlexAuthButton
- Replace inline SVGs with icon components in PlexServerInfo
- Add MissingPlexAuthPage for better auth error handling
- Update routes to redirect missing Plex auth to dedicated page
- Refactor usePlexApi and usePlexAuth for better composable patterns
- Remove deprecated usePlexLibraries composable
- Improve PlexLibraryModal and PlexLibraryStats components
- Clean up Plex-related helper utilities
