style: 进一步增大二维码尺寸到 280x280

frontend/src/pages/login/QRCodeLogin.module.css

@@ -12,8 +12,9 @@
 .qrcode {
   display: flex;
   justify-content: center;
+  align-items: center;
   margin-bottom: 20px;
-  min-height: 260px;
+  min-height: 300px;
 }
 
 .qrcode svg {

frontend/src/pages/login/QRCodeLogin.tsx

@@ -100,8 +100,8 @@ export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
             qrObjRef.current = window.QRLogin({
               id: 'feishu-qrcode-container',
               goto: authUrl,
-              width: '240',
+              width: '280',
-              height: '240',
+              height: '280',
             })
           }, 50)