HPCC-25418 Timeline widget props standardized

Signed-off-by: Jaman Brundage <jbrundage372@gmail.com>

esp/src/src/Timings.ts

@@ -405,6 +405,8 @@ export class WUTimelineEx extends WUTimeline {
 
     constructor() {
         super();
+        this._gantt.bucketHeight(16);
+        this.strokeWidth(0);
     }
 
     data(): any;