* Add opencode oxlint plugin and UI refinements
- Add .opencode/plugins/oxlint.ts to run oxlint automatically on file edits
- Refactor RankingDisplay into shared StatHelpers component
- Add tied rank display support in home loader
- Update navbar with NavLink for active state styling
- Replace .reverse() with .toReversed() in RecentPicksFeed
* Remove unused RankChangeIndicator import in LeagueRow
