View for Roadmap route

ee/app/views/groups/roadmap/show.html.haml

+- @no_breadcrumb_container = true
+- @no_container = true
+- @content_wrapper_class = "group-epics-roadmap-wrapper"
+- @content_class = "group-epics-roadmap"
+- breadcrumb_title _("Epics Roadmap")
+
+- if @epics_count != 0
+  - content_for :page_specific_javascripts do
+    = webpack_bundle_tag 'common_vue'
+    = webpack_bundle_tag 'roadmap'
+  #js-roadmap{ data: { epics_path: group_epics_path(@group, format: :json), group_id: @group.id, empty_state_illustration: image_path('illustrations/epics/roadmap.svg') } }
+- else
+  = render 'shared/empty_states/roadmap'