admin: add link to terminal mode

Author: marcushultman

static/strecku/admin/index.html

@@ -78,6 +78,9 @@ <h2 flex class="toolbar-title">{{store.name}} settings</h2>
             ng-class="{ active: active('Api') }">
           <p>Store API</p>
         </md-list-item>
+        <md-list-item ng-href="/api/v1/stores/{{store._id}}/terminal">
+          <p>Launch terminal</p>
+        </md-list-item>
       </md-list>
     </md-sidenav>