Fix links for general pages appearing in unfiltered search results
Fix links for general pages appearing in unfiltered search results

# The plain URL has an extra `/api` in it for general pages, and so needs
# the same switch-case behaviour as questions and concepts. Not worth any
# more effort for a deprecated site.

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