use router links instead of back

src/popup/settings/export.component.html

@@ -1,10 +1,10 @@
 <form (ngSubmit)="submit()">
     <header>
         <div class="left">
-            <button type="button" appBlurClick (click)="close()">
+            <a routerLink="/tabs/settings">
                 <span class="header-icon"><i class="fa fa-chevron-left"></i></span>
                 <span>{{'back' | i18n}}</span>
-            </button>
+            </a>
         </div>
         <div class="center">
             <span class="title">{{'exportVault' | i18n}}</span>