message: fix(devtools): prevent link in property view body from closing panel header when clicked (rangle/angular-devtools#714)
diff: <mat-expansion-panel-header collapsedHeight="25px" expandedHeight="25px">
  <mat-panel-title>
  {{ panels[index].title }}
  - <a href="{{ panels[index].documentation }}" target="_blank" class="documentation">
  + <a
  + href="{{ panels[index].documentation }}"
  + target="_blank"
  + class="documentation"
  + (click)="$event.stopPropagation()"
  + >
  <mat-icon class="docs-link"> link </mat-icon>
  </a>
  </mat-panel-title>
  