Create pretty frontend

[KWaloen]

The frontend should be built based on the current MSO website: https://mso.uib.no/

Since we are using Wagtail, the client is free to add and edit the text as they see fit so the contents are not important. However, the client should be able to create all the elements (boxes, links, colors etc) through the Wagtail admin panel.

Suggested changes:

• There should be a log in page available on all pages. This could be a log in button that directs to a log in page or a pop up instead of the "Internsider" element as it currently is.

• Link to the facebook page could be in the footer instead of in the Navbar. The link should open a new tab instead of opening in the current tab.