Refactor App component to integrate mock statistics and recent chat messages; update localization for stats and activity sections

src/locales/zh.json

@@ -1,6 +1,5 @@
 {
   "nav": {
-    "logo": "CS 社区",
     "home": "首页",
     "servers": "服务器",
     "blog": "博客",
@@ -18,10 +17,10 @@
     "viewStats": "📊 查看统计"
   },
   "stats": {
-    "onlinePlayers": "在线玩家",
-    "activeServers": "活跃服务器",
-    "hoursPlayed": "游戏时长",
-    "liveMatches": "实时比赛"
+    "totalPlayers": "总玩家数",
+    "totalConnects": "总连接数",
+    "totalPlayTime": "游戏时长",
+    "totalKills": "总击杀数"
   },
   "features": {
     "title": "社区功能",
@@ -53,11 +52,11 @@
   },
   "activity": {
     "title": "最近活动",
-    "topPlayers": "🏆 顶级玩家",
-    "quickStats": "🎯 快速统计",
-    "avgMatchTime": "平均比赛时长：12分34秒",
-    "mostPopularMap": "最受欢迎地图：Dust2",
-    "peakHours": "高峰时段：晚上8-11点"
+    "topPlayers": "游戏时长排行榜",
+    "serverInfo": "服务器信息",
+    "serverStatus": "状态：在线 ✓",
+    "currentMap": "地图：de_dust2",
+    "nextRestart": "重启：6小时30分钟"
   },
   "footer": {
     "community": "🎯 CS 社区",