fix: Locale dates format (#6211)

Co-authored-by: Michael Genson <71845777+michael-genson@users.noreply.github.com>

frontend/pages/group/data/units.vue

@@ -292,7 +292,7 @@
         </v-icon>
       </template>
       <template #[`item.createdAt`]="{ item }">
-        {{ formatDate(item.createdAt) }}
+        {{ item.createdAt ? $d(new Date(item.createdAt)) : '' }}
       </template>
       <template #button-bottom>
         <BaseButton @click="seedDialog = true">
@@ -381,15 +381,6 @@ export default defineNuxtComponent({
       },
     ];
 
-    function formatDate(date: string) {
-      try {
-        return i18n.d(Date.parse(date), "medium");
-      }
-      catch {
-        return "";
-      }
-    }
-
     const { store, actions: unitActions } = useUnitStore();
 
     // ============================================================
@@ -545,7 +536,6 @@ export default defineNuxtComponent({
       tableHeaders,
       store,
       validators,
-      formatDate,
       // Create
       createDialog,
       domNewUnitForm,