Semi-important: Filter out "old" reservations in the admin-page

[Daniel-AVE]

It's hard to keep track of upcoming reservations when filtering based on date due to old reservations being in the list, and those coming first. It would be a lot easier if old reservations was moved to a list of its own.

[MindChirp]

@Daniel-AVE Begynner på denne nå. Tenker å implementere et mer avansert filtersystem hvor du kan huke av akkurat hva du ønsker å se.