Add leaderboard route with participants, and configure Shell brand colors in Tailwind

docker-compose.yml

@@ -43,7 +43,7 @@ services:
     image: mysql:8.0
     restart: unless-stopped
     ports:
-      - "${DB_PORT:-3306}:3306"
+      - "${DB_PORT:-3307}:3306"
     environment:
       MYSQL_DATABASE: ${DB_DATABASE:-laravel}
       MYSQL_USER: ${DB_USERNAME:-laravel}