Add title to the "Groups" area on the Single Report page

[joshuapowell]

Problem

We need to give the "Groups" sidebar area of the Single Report page a title that describes what the associated organization name and logos represent.

Pictured below is the current, incomplete display of that functionality.

Solution

In place of the above we should be doing something that aligns more with this aesthetic representation.

[joshuapowell]

Implemented version of this looks like attached. See commit d21fcc2 for more information.