message: Fixed issue related to highlight the controls to back to the application page.
diff: <header class="flogo-flow-detail-header col-sm-9">
  <div class="flogo-flow-detail-header-back"
  - [ngClass]="{'--hover':backToAppHover}"
  + [ngClass]="{'--hover':backToAppHover}">
  + <div class="flogo-flow-detail-header-back-icon"
  + (click)="navigateToApp()"
  (mouseover)="onMouseOverBackControl()"
  (mouseout)="onMouseOutBackControl()">
  - <div class="flogo-flow-detail-header-back-icon" (click)="navigateToApp()">
  <li class="fa fa-angle-left"></li>
  </div>
  <div class="">
  <h3 class="flogo-flow-detail-name" [(myContenteditable)]="flow.name" (myContenteditableChange)="changeFlowDetail($event, 'name')"></h3>
  <span>in</span> <span (click)="navigateToApp()"
  - class="flogo-flow-detail-header-back-app-name">{{flow?.app?.name}}</span>
  + class="flogo-flow-detail-header-back-app-name"
  + (mouseover)="onMouseOverBackControl()"
  + (mouseout)="onMouseOutBackControl()">{{flow.app?.name}}</span>
  <p class="flogo-flow-detail-description" [(myContenteditable)]="flow.description"
  placeholder="{{ translate.instant('CANVAS:ADD-FLOW-DESCRIPTION') }}"
  (myContenteditableChange)="changeFlowDetail($event, 'descrption')"></p>
  