feat: ratings stats

src/constants/leagues.ts

@@ -1,7 +1,7 @@
 export const LEAGUES = [
-  { name: 'diamond', minScore: 5000 },
-  { name: 'platinum', minScore: 4000 },
-  { name: 'gold', minScore: 3000 },
-  { name: 'silver', minScore: 2000 },
-  { name: 'bronze', minScore: 0 },
+  { name: 'diamond', minScore: 5000, index: 0 },
+  { name: 'platinum', minScore: 4000, index: 1 },
+  { name: 'gold', minScore: 3000, index: 2 },
+  { name: 'silver', minScore: 2000, index: 3 },
+  { name: 'bronze', minScore: -Infinity, index: 4 },
 ];