fix: action dropdown inaccessible near bottom of the userlist (#4250)

Author: imorland

framework/core/less/admin/UsersListPage.less

@@ -1,6 +1,7 @@
 .UserListPage {
   // Pad bottom of page to make nav area look less squashed
   padding-bottom: 24px;
+  overflow-x: auto;
 
   &-header {
     margin-bottom: 16px;
@@ -42,7 +43,6 @@
     &--loaded,
     &--loadingPage {
       display: grid;
-      overflow-x: auto;
     }
 
     &-header {