"Default container" button / link on main project page

[january3]

This feature is supposed to improve usability of KIOSC for new users.

Problem: users manage to use SODAR, then move to KIOSC but then are puzzled what they should click. They do not know what a "container" is and do not recognize the little "view" button as the thing they should click.

Solution: For each project, have a default container (configuratble via container update). In most of the cases it will probably be the only container. For this container, redirect the link kiosc.bihealth.org/project_id/default_container (or something similar) to the correct container addres.

In addition, have a big button or link on the project overview page which says "Click me" (or something).