Minor changes

@@ -147,14 +147,14 @@ export class NavTreeComponent implements OnInit {
 
     this.treeElement = $('.tb-nav-tree-container', this.elementRef.nativeElement).jstree(config);
 
-    this.treeElement.on('changed.jstree', (e, data) => {
+    this.treeElement.on('changed.jstree', (e: any, data) => {
       const node: NavTreeNode = data.instance.get_selected(true)[0];
       if (this.onNodeSelected) {
         this.onNodeSelected(node, e as Event);
       }
     });
 
-    this.treeElement.on('model.jstree', (e, data) => {
+    this.treeElement.on('model.jstree', (e: any, data) => {
       if (this.onNodesInserted) {
         this.onNodesInserted(data.nodes, data.parent);
       }