feat: guest login qr code

public/locales/en/auth.json

@@ -31,7 +31,7 @@
   "check_email_desc": " We’ve sent you a magic link to {{email}}. Click on the link to continue.",
   "use_different": "Use a different email",
   "welcome": "Welcome to {{name}} server",
-  "guest_login_tip": "Please sign in to send a message",
+  "guest_login_tip": "Please scan QR code or sign in to send a message",
   "sign_in": "Sign In",
   "sign_up": "Sign Up",
   "signing_up": "Signing Up"

public/locales/zh/auth.json

@@ -31,7 +31,7 @@
   "placeholder_pwd": "输入密码",
   "placeholder_confirm_pwd": "确认密码",
   "welcome": "欢迎来到 {{name}} 👏🏻",
-  "guest_login_tip": "请登录后发消息",
+  "guest_login_tip": "请扫码或登录后发消息",
   "sign_in": "登录",
   "sign_up": "注册",
   "signing_up": "注册中"