add listener to update activityId based on row click

src/function/ganttEvent.js

@@ -10,13 +10,9 @@ gantt.attachEvent("onAfterTaskAdd", function(id,item){
     }
 });
 
-// gantt.attachEvent("onTaskClick", function(id,e){
+gantt.attachEvent("onTaskRowClick", function(id,row){
-//     return true;
+    activityId = id;
-// });
+});
-
-// gantt.attachEvent("onAfterTaskUpdate", function(id,item){
-    
-// });
 
 gantt.ext.inlineEditors.attachEvent("onBeforeEditStart", function(state){
     let id = parseInt(state.id)