feat: 图形验证码样式调整

Signed-off-by: tangshizhe <48740614+tangshizhe@users.noreply.github.com>

resource/staticres/css/login-card.css

@@ -113,7 +113,8 @@
 }
 
 .login-card-main .login-card-item .after-input-box .verify-img {
-  border-radius: 20px;
+  width: 100px;
+  border-radius: 6px;
   margin-right: -14px;
 }