changed the auto sort function to make the function es5 compliant as the rest of the project is already

src/litegraph.js

@@ -418,7 +418,7 @@
             }
 
             if (this.auto_sort_node_types) {
-                r.sort((a, b) => a.title.localeCompare(b.title));
+                r.sort(function(a,b){return a.title.localeCompare(b.title)});
             }
 
             return r;