refactor: simplify ManaStatsSection props from 17 fields to single stats object

src/components/game/tabs/PrestigeTab.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useCallback } from 'react';
+import { useCallback } from 'react';
 import { useShallow } from 'zustand/react/shallow';
 import { usePrestigeStore, useGameStore } from '@/lib/game/stores';
 import { PRESTIGE_DEF } from '@/lib/game/constants/prestige';