fill intervalUnit when editing plot

pdb-js/src/app/visualization-page/visualization-page.component.ts

@@ -112,6 +112,8 @@ ngAfterViewInit(): void {
     this.updateDateRange(c.dateRange, false);
     this.limitbycomponent.limitBy = c.limitBy;
     this.limitbycomponent.limit = c.limit;
+    this.intervalUnit = c.intervalUnit;
+    this.intervalValue = c.intervalValue;
     this.y1AxisDefinitionComponent.yAxisScale = c.y1.axisScale;
     this.y1AxisDefinitionComponent.minYValue = c.y1.rangeMin;
     this.y1AxisDefinitionComponent.maxYValue = c.y1.rangeMax;