Cards URL should contain group ID if contribution has at least one group associated

[cdparra]

Describe the problem/story

As of now contributions URLs in the cards do not contain the group id in the path. This is happening both in the campaign page and the working group's page.

Expected behavior and actual behavior.

Steps to reproduce the problem

• Visit the campaign page => Click on a proposal that has a group associated
• Visit a wg page => click on a proposal

In both cases, the url should include the group's ID in the path. For example, if URL is /assembly/113/campaign/215/contribution/18416, and the contribution is associated to group 296, the url should be /assembly/113/campaign/215/group/296/contribution/18416

Specifications for the story

• In the campaign page, the URL should include the group's id of the first group in the list of workingGroupAuthors of the contribution
• In the Working Group Page, the card URL should include the current's group page id