feat: 添加应用版本更新功能；实现版本检查、更新提示及国际化支持

src/locales/en-US.json

@@ -6,6 +6,15 @@
     "transfer": "Transfer",
     "balance": "Balance"
   },
+  "app": {
+    "update": {
+      "title": "New Version Available",
+      "message": "A new version is available. Update now?",
+      "now": "Update Now",
+      "later": "Later",
+      "forceUpdate": "A new version is required to continue using the app"
+    }
+  },
   "scanner": {
     "title": "Scan QR Code",
     "hint": "Align QR code within frame to scan",