Update wordpress plugin

Hi,

I would like few modifications of the wordpress plugin "eventer" (I will share it to the awarded dev):
https://eventer.imithemes.com/events-month-list-compact/
It is an event management plugin for organizers.

Frontend interface for customers to have the list of events:

1. Add an extra combo list in the event list to filter the events with the selected item*
2. Instead of selecting an image for each event (currently done by organizers), replace this feature by using the image of the selected slug (same for the event page)
3. In the confirmation page, allow the customer to cancel his booking

Backend interface for organizers to manage events:

4. If an organizer deletes an event, an email is sent to all customers that has booked one ticket of this event
5. Make the "add new event form" in french language instead of english (just use google translate) and with date/time 24h format
6. *Add the 3 lists used to filter the events in the frontend by customers.

Please check the red details in the screenshots herewith to check the work.

Thanks