message: Changes to make error handler toggle button visible irrespective of the trigger's state to the flow
diff: <flogo-transform [flowId]="'root'" data-flogo-for-diagram-id="root"></flogo-transform>
  <flogo-transform [flowId]="'errorHandler'" data-flogo-for-diagram-id="errorHandler"></flogo-transform>
  - <flogo-flows-detail-error-panel *ngIf="hasTrigger">
  + <flogo-flows-detail-error-panel>
  <flogo-canvas-flow-diagram *ngIf="errorHandler"
  [tasks]="errorHandler.tasks"
  [diagram]="errorHandler.diagram"
  