🐛 Fixed missing index page from pages sitemaps

closes https://github.com/TryGhost/Ghost/issues/14180
refs 597ec51afb

- The index page `/` was missing from sitemaps.xml. It was a regression instoruced with a referenced commit.

core/frontend/services/routing/router-manager.js

@@ -35,7 +35,7 @@ class RouterManager {
     routerCreated(router) {
         // NOTE: this event should be become an "internal frontend even"
         //       and should not be consumed by the modules outside the frontend
-        events.emit('router.created', this);
+        events.emit('router.created', router);
 
         // CASE: there are router types which do not generate resource urls
         //       e.g. static route router, in this case we don't want ot notify the URL service

test/e2e-frontend/default_routes.test.js

@@ -378,6 +378,8 @@ describe('Default Frontend routing', function () {
                 .expect(assertCorrectFrontendHeaders)
                 .expect((res) => {
                     res.text.should.match(/urlset/);
+                    // CASE: the index page should always be present in pages sitemap
+                    res.text.should.containEql('<loc>http://127.0.0.1:2369/</loc>');
                     res.text.should.not.containEql('__GHOST_URL__');
                 });
         });