Vacancy to be displayed when seat is vacant

As a Resident User

I would like to know that my EO resign or is not in function anymore

So that I can set my expectation regarding him or her to response to me.

In the collection ElectedOfficials of Firestore, we have a date : election.termEnd. If the date is past the current date, we should display a vacant seat instead of the current EO until another EO is displayed in the seat with a new date of election.lastElectionOn and where the election.termEnd will be set to null. Example of this : yomXONo4HOj88RzwxJLV. Vacant since June 20th, 2023