<mat-toolbar color="primary">
  <button mat-icon-button (click)="done()"><mat-icon>arrow_back</mat-icon></button>
  <span style="font-size: 20px;">Refine</span>
  <span class="example-spacer"></span>
  <button mat-icon-button (click)="clear()"><mat-icon>clear_all</mat-icon></button>
</mat-toolbar>
<div class="component" ngClass.xs="component-xs">
  <app-search-filters *ngIf="filtersForm" [filtersForm]="filtersForm"></app-search-filters>
</div>

<mat-toolbar color="primary">
  <span style="font-size: 20px;">Refine</span>
  <span class="example-spacer"></span>
  <button mat-icon-button (click)="clear()"><mat-icon>clear_all</mat-icon></button>
  <button mat-button (click)="done()">Done</button>
</mat-toolbar>
<div class="component" ngClass.xs="component-xs">
  <app-search-filters *ngIf="filtersForm" [filtersForm]="filtersForm"></app-search-filters>
</div>

Change back button to Done button
Change back button to Done button
