add more style to selected menu

src/app/app.scss

@@ -34,8 +34,9 @@ p {
 }
 
 .selected-menu {
-    background-color: #f1f1f1;
-    border-radius: 20px 0px 0px 20px;
+    background-color: #f4f4f4;
+    border-radius: 15px 0px 0px 15px;
+    border-right: 1px solid #dedede;
 }
 
 // body.menu-open .side-menu-open {