UI tweaks for East Sussex

See https://github.com/mysociety/fixmystreet-commercial/issues/641 and https://github.com/mysociety/fixmystreet-commercial/issues/642

Have already had feedback on these, and addressed some concerns.
http://eastsussex.commercial.fixmystreet.staging.mysociety.org/report/92
Sorry, the second half of my comment wasn't related to the particular line (and goodo about the first bit then); like my other comments, it was more whether this behaviour could be obtained without a cobrand specific copy of the entire template.