vue homepage_widget: improve translations, titles, tabs order, add no data statement

src/Bundle/ChillMainBundle/Resources/public/vuejs/HomepageWidget/MyWorks.vue

@@ -1,7 +1,8 @@
 <template>
 <div class="accompanying_course_work">
-   <h2>{{ $t('my_works.title') }}</h2>
-   <tab-table>
+   <div class="alert alert-light">{{ $t('my_works.description') }}</div>
+   <span v-if="noResults" class="chill-no-data-statement">{{ $t('no_data') }}</span>
+   <tab-table v-else>
       <template v-slot:thead>
          <th scope="col">#</th>
          <th scope="col">{{ $t('StartDate') }}</th>
@@ -48,7 +49,14 @@ export default {
       ]),
       ...mapGetters([
          'isWorksLoaded',
-      ])
+      ]),
+      noResults() {
+         if (!this.isWorksLoaded) {
+            return false;
+         } else {
+            return this.works.count === 0;
+         }
+      }
    },
    methods: {
       getEntityName(w) {