As a PR creator, I want google calendar integration, so that I can automatically add it to both

[x183]

Description

It's annoying and easy to forget having to add things to both the IT event calendar and to chalmers.it, having the calendar event being created automatically would lead to a more updated calendar and more people coming to the events.

Definition of Done

• When creating an event/news, add ability to create calendar event.
• Integrate a calendar which shows events that are present in the IT event calendar