added notes to locations, exports comments fix

locations needed another data point for notes to additional information
about instances that aren't covered by public comments, i.e. if the site
is still live, additional concerns, etc, so that's been added and the
appropriate template files added

also, public comments where not being included in the CSV exports, so that's
been patched as well

app/Models/Location.php

@@ -35,6 +35,7 @@ class Location extends Model
         "created_at",
         "updated_at",
         "actions_count",
-        "archive_links"
+        "archive_links",
+        "notes",
     ];
 }