Prep for a new auto-complete, and enable foreign currency select.

resources/assets/js/components/transactions/AccountSelect.vue

@@ -41,6 +41,7 @@
             <button
                     v-on:click="clearSource"
                     class="btn btn-default"
+                    tabIndex="-1"
                     type="button"><i class="fa fa-trash-o"></i></button>
         </span>
             </div>