👔(service-worker) add new field to create doc

We now display the creation and modification date
of the document in the document grid, so when we
create a new document in offline mode we need to
set the dates as well.

src/frontend/apps/impress/src/features/service-worker/ApiPlugin.ts

@@ -179,6 +179,8 @@ export class ApiPlugin implements WorkboxPlugin {
       ...bodyMutate,
       id: uuid,
       content: '',
+      created_at: new Date().toISOString(),
+      updated_at: new Date().toISOString(),
       abilities: {
         destroy: true,
         versions_destroy: true,