fix linting (and change a little wording in onboarding page)

src/components/ChoiceButtonDialog.vue

@@ -117,7 +117,7 @@ export default class PromptDialog extends Vue {
         onOption3: this.onOption3,
         onCancel: this.onCancel,
       } as NotificationIface,
-      -1
+      -1,
     );
   }
 
@@ -149,4 +149,4 @@ export default class PromptDialog extends Vue {
     close("string that does not matter");
   }
 }
-</script> 
+</script>