Differentiate free and paid events on eventcard comp

[Snorre98]

Modify allready excisiting component

These event cards (EventCard) should display wheter the events is paid or free. This information is available through an event api endpoint, see the table view on the Events page for some context. Some events are free, others are paid.

We dont want to display price on the cards, just "Paid" or "Free" category. To sum up; add feature to the card component which allows for users to see if the event is paid or free, similar to how it is possible to see title or time and date.