💡 Render exception class description

[roxblnfk]

In cases when an exception doesn't implement the FriendlyExceptionInterface the exception still may have a PHP doc with a useful description.

Note

The description may contain special annotations like {@see SomeClass} (inline) or @link...
It would be nice to render they in a good way.

[samdark]

Could be useful. Good idea 👍

[vjik]

Done by #167