Make links in user and group descriptions clickable.

## Feature Request Form
### Problem you are trying to address with this feature

When users include links in the description fields of their profiles they are not clickable.

### Your solution

Make 'em clickable.

### Add tags - did you add labels?
If this a customer requested feature, make sure to add that label.

The issue names no files, tests, or entry points. Start by locating where user and group profile descriptions are rendered, then verify that links in both description types become clickable and add coverage if the relevant tests are found.

Written by the indexing model from the issue text.