Audit date format usage in app/assets/javascripts/admin/broadcast_messages/components/messages_table.vue

In /assets/javascripts/admin/broadcast_messages/components/messages_table.vue we are using a date formatting function, our preference is to always use a util from app/assets/javascripts/lib/utils/datetime/locale_dateformat.js

If it is possible to retain the same date format and use locale_dateformat , please create a merge request implementing this, if not, please comment on this issue explaining why it is not yet possible.

Please note: in some cases, we can get a very similar format but not exactly the same, in this case, please create the implementation in a MR and clearly show the difference in formatting so that the reviewers can approve or suggest a change.

For an implementation plan and live coding examples, please refer to the parent epic: &13978