style fix

Signed-off-by: zhangtianli2006 <49156174+zhangtianli2006@users.noreply.github.com>

Author: ZTL-UwU

src/components/lib/captcha.vue

@@ -39,10 +39,14 @@ export default {
 
 <style scoped>
 .captcha {
-  display: flex;
+    display: flex;
 }
 
 .captcha-img {
-  margin-left: 10px;
+    margin-left: 10px;
+}
+
+.captcha-img:hover {
+    cursor: pointer;
 }
 </style>