Suggest backend reviewer for erb and haml files

Changelog: changed

spec/tooling/danger/project_helper_spec.rb

@@ -44,7 +44,7 @@ RSpec.describe Tooling::Danger::ProjectHelper do
       'ee/README'       | [:unknown]
 
       'app/assets/foo'                   | [:frontend]
-      'app/views/foo'                    | [:frontend]
+      'app/views/foo'                    | [:frontend, :backend]
       'public/foo'                       | [:frontend]
       'scripts/frontend/foo'             | [:frontend]
       'spec/frontend/bar'                | [:frontend]
@@ -58,7 +58,7 @@ RSpec.describe Tooling::Danger::ProjectHelper do
       'config/deep/foo.js'               | [:frontend]
 
       'ee/app/assets/foo'                | [:frontend]
-      'ee/app/views/foo'                 | [:frontend]
+      'ee/app/views/foo'                 | [:frontend, :backend]
       'ee/spec/frontend/bar'             | [:frontend]
       'ee/spec/frontend_integration/bar' | [:frontend]
 
@@ -231,9 +231,12 @@ RSpec.describe Tooling::Danger::ProjectHelper do
       'ee/app/assets/javascripts/integrations/zentao/issues_list/graphql/queries/get_zentao_issues.query.graphql' | [:integrations_fe, :frontend]
       'app/assets/javascripts/pages/projects/settings/integrations/show/index.js' | [:integrations_fe, :frontend]
       'ee/app/assets/javascripts/pages/groups/hooks/index.js' | [:integrations_fe, :frontend]
-      'app/views/clusters/clusters/_integrations_tab.html.haml' | [:frontend]
+      'app/views/clusters/clusters/_integrations_tab.html.haml' | [:frontend, :backend]
       'app/assets/javascripts/alerts_settings/graphql/fragments/integration_item.fragment.graphql' | [:frontend]
       'app/assets/javascripts/filtered_search/droplab/hook_input.js' | [:frontend]
+
+      'app/views/layouts/header/_default.html.haml' | [:frontend, :backend]
+      'app/views/layouts/header/_default.html.erb'  | [:frontend, :backend]
     end
 
     with_them do

tooling/danger/project_helper.rb

@@ -75,7 +75,9 @@ module Tooling
           spec/frontend/tracking/.*\.js |
           spec/frontend/tracking_spec\.js
         )\z}x => [:frontend, :product_intelligence],
-        %r{\A((ee|jh)/)?app/(assets|views)/} => :frontend,
+        %r{\A((ee|jh)/)?app/assets/} => :frontend,
+        %r{\A((ee|jh)/)?app/views/.*\.svg} => :frontend,
+        %r{\A((ee|jh)/)?app/views/} => [:frontend, :backend],
         %r{\A((ee|jh)/)?public/} => :frontend,
         %r{\A((ee|jh)/)?spec/(javascripts|frontend|frontend_integration)/} => :frontend,
         %r{\A((ee|jh)/)?vendor/assets/} => :frontend,