Fix bug where incorrect school could be displayed despite correct school info
Fix bug where incorrect school could be displayed despite correct school info

# The page displayed the selected school by searching for schools that matched the URN as a query, but if the top
# result was not the correct one (and the search doesn't know to prioritise URN match) then a school with a different URN
# to that searched for could be displayed! The endpoint accepts a URN parameter to just search by URN, so use that instead.

ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app