[users] changing height of group select in edit user modal

admin/themes/default/template/user_list.tpl

@@ -1648,6 +1648,8 @@ $(document).ready(function() {
   width: 65%;
   padding-left: 30px;
   overflow-x: auto;
+  display: flex;
+  flex-direction: column;
 }
 
 .edit-user-slides,
@@ -1659,6 +1661,7 @@ $(document).ready(function() {
   -webkit-overflow-scrolling: touch;
   scrollbar-width: none;
   -ms-overflow-style: none;
+  height: 100%;
 }
 
 .edit-user-slides::-webkit-scrollbar,
@@ -2886,6 +2889,16 @@ Advanced filter
   margin-bottom:5px;
 }
 
+.selectize-dropdown-content {
+  overflow-y: hidden;
+}
+
+.selectize-dropdown {
+  height: 100%;
+  overflow-y: scroll;
+  overflow-x: hidden;
+}
+
 #permitActionUserList #applyActionBlock {
   margin: 30px 0 0 0;
   display:flex;