refactor: update menu style

Author: fecommunity

client/src/components/Header/index.module.scss

@@ -137,17 +137,18 @@ $height: 64px;
   }
 
   .menuWrapper {
-    background: transparent;
     border: none;
     display: flex;
     align-items: flex-end;
     min-width: 80px;
     width: 100%;
     height: 100%;
+    background-color: var(--bg-box);
     .menu {
       width: 100%;
       background-color: var(--bg-box);
       height: calc(100% - 12px);
+      border: none;
     }
   }