修复提取 ip 接口json类型返回值错误问题；完善 ip 提取页响应式设计

src/app/(api)/proxies/route.ts

@@ -47,8 +47,7 @@ export async function GET(req: NextRequest) {
 
     switch (format) {
     case 'json':
-      const body = JSON.stringify(params)
-      return NextResponse.json(body)
+      return NextResponse.json(result.data)
     case 'text':
       const text = result.data.map((item) => {
         const list = [item.host, item.port]