Purge all vue-class-component with vue-facing-decorator.

Make some strike-throughs for project-task
Update package.json

src/views/StartView.vue

@@ -28,9 +28,9 @@
 </template>
 
 <script lang="ts">
-import { Options, Vue } from "vue-class-component";
+import { Component, Vue } from "vue-facing-decorator";
 
-@Options({
+@Component({
   components: {},
 })
 export default class StartView extends Vue {