fix(frontend): 修复代理快捷添加弹窗的 i18n 解析错误

batchInputHint 中的 @ 符号需要使用 {'@'} 转义

frontend/src/i18n/locales/en.ts

@@ -818,7 +818,7 @@ export default {
       batchAdd: 'Quick Add',
       batchInput: 'Proxy List',
       batchInputPlaceholder: "Enter one proxy per line in the following formats:\nsocks5://user:pass{'@'}192.168.1.1:1080\nhttp://192.168.1.1:8080\nhttps://user:pass{'@'}proxy.example.com:443",
-      batchInputHint: 'Supports http, https, socks5 protocols. Format: protocol://[user:pass@]host:port',
+      batchInputHint: "Supports http, https, socks5 protocols. Format: protocol://[user:pass{'@'}]host:port",
       parsedCount: '{count} valid',
       invalidCount: '{count} invalid',
       duplicateCount: '{count} duplicate',

frontend/src/i18n/locales/zh.ts

@@ -943,7 +943,7 @@ export default {
       batchAdd: '快捷添加',
       batchInput: '代理列表',
       batchInputPlaceholder: "每行输入一个代理，支持以下格式：\nsocks5://user:pass{'@'}192.168.1.1:1080\nhttp://192.168.1.1:8080\nhttps://user:pass{'@'}proxy.example.com:443",
-      batchInputHint: '支持 http、https、socks5 协议，格式：协议://[用户名:密码@]主机:端口',
+      batchInputHint: "支持 http、https、socks5 协议，格式：协议://[用户名:密码{'@'}]主机:端口",
       parsedCount: '有效 {count} 个',
       invalidCount: '无效 {count} 个',
       duplicateCount: '重复 {count} 个',