Revert "feature:(个人中心) 修改个人中心banner图片"

This reverts commit 270fef4eb9a2d6f8a17eb47cb2041eee83f69c9a.

src/views/PersonalCenter.vue

@@ -826,8 +826,7 @@
 
 <style lang="scss" scoped>
 .center-banner {
-  background: url(../assets/img/center-banner.png) top no-repeat;
-  background-size: 100% 240px;
+  background: url(../assets/img/login-bg.png) top no-repeat;
   height: 240px;
   display: flex;
   justify-content: center;