Amend tracking category

- send the name of the section rather than the name of the
page, as that's already recorded. Request from PA.

Author: hannako

app/views/content_items/detailed_guide/_brexit_sections.html.erb

@@ -12,7 +12,7 @@
     <% links = section[:links].map do |link|
         link_to(link[:text], link[:path], class: "govuk-link", data: {
           track_action: link[:path],
-          track_category: brexit_child_taxon[:track_category],
+          track_category: "Child taxon section links",
           track_label: section[:title][:text] || "",
           module: 'gem-track-click',
         })

test/integration/detailed_guide_test.rb

@@ -118,7 +118,7 @@ class DetailedGuideTest < ActionDispatch::IntegrationTest
     track_label = find_link("Foreign travel advice")["data-track-label"]
 
     assert_equal "/foreign-travel-advice", track_action
-    assert_equal "brexit-citizen-page", track_category
+    assert_equal "Child taxon section links", track_category
     assert_equal "Travel to the EU", track_label
 
     # adds GA tracking to the description field links