Now we check the given record or name is a relatable instance or class
to avoid trying to render goals for records which don't have a goals
association.
Note for now we are ignoring the case where we pass a controller_path
for an unsupported class (for example, `legislation/proposals` or
`budgets/headings`) because we never use it. We might need to revisit
this case in the future.
Co-Authored-By: Javi Martín <javim@elretirao.net>
