Draft: Extra cell with buttons in list view

[kSzajo]

Hello,

I'd like to enhance list view with extra cell containing buttons that could be used to manipulate event. This would require to allow passing optional HTMLElement (or some other interface to be framework agnostic ?) which then could be rendered in extra cell. Please refer to screenshot attached

Could you please assist on how this idea can be developed? I did some initial draft but got really confused while thinking how to make it agnostic and what should be the API to allow rendering custom components in extra table cell.

I assume this requires change in event struct https://github.com/fullcalendar/fullcalendar/blob/main/packages/core/src/structs/event-source-parse.ts#L34 to allow pass HTMLElement?

#7498

[acerix]

Please submit this ticket under Issues explaining the new feature you are looking for, then link this PR to it.