Fix default url for Monitor sidebar menu

Changelog: fixed

ee/spec/views/layouts/nav/sidebar/_project.html.haml_spec.rb

@@ -123,37 +123,6 @@ RSpec.describe 'layouts/nav/sidebar/_project' do
     end
   end
 
-  describe 'Monitor main link' do
-    let_it_be(:user) { create(:user) }
-
-    before do
-      project.project_feature.update!(builds_access_level: feature)
-
-      project.team.add_developer(user)
-      sign_in(user)
-    end
-
-    context 'when ci/cd is disabled' do
-      let(:feature) { ProjectFeature::DISABLED }
-
-      it 'links to feature flags page' do
-        render
-
-        expect(rendered).to have_link('Monitor', href: project_feature_flags_path(project))
-      end
-    end
-
-    context 'when ci/cd is enabled' do
-      let(:feature) { ProjectFeature::ENABLED }
-
-      it 'links to metrics page' do
-        render
-
-        expect(rendered).to have_link('Monitor', href: metrics_project_environments_path(project))
-      end
-    end
-  end
-
   describe 'Security and Compliance' do
     context 'when user does not have permissions' do
       before do

lib/sidebars/projects/menus/monitor_menu.rb

@@ -21,11 +21,7 @@ module Sidebars
 
         override :link
         def link
-          if can?(context.current_user, :read_environment, context.project)
-            metrics_project_environments_path(context.project)
-          else
-            project_feature_flags_path(context.project)
-          end
+          renderable_items.first&.link
         end
 
         override :extra_container_html_options

spec/lib/sidebars/projects/menus/monitor_menu_spec.rb

@@ -50,18 +50,21 @@ RSpec.describe Sidebars::Projects::Menus::MonitorMenu do
   end
 
   describe '#link' do
-    context 'when metrics dashboard is visible' do
-      it 'returns link to the metrics dashboard page' do
-        expect(subject.link).to include('/-/environments/metrics')
-      end
+    let(:foo_path) { '/foo_path'}
+
+    let(:foo_menu) do
+      ::Sidebars::MenuItem.new(
+        title: 'foo',
+        link: foo_path,
+        active_routes: {},
+        item_id: :foo
+      )
     end
 
-    context 'when metrics dashboard is not visible' do
-      it 'returns link to the feature flags page' do
-        project.project_feature.update!(operations_access_level: Featurable::DISABLED)
+    it 'returns first visible item link' do
+      subject.insert_element_before(subject.renderable_items, subject.renderable_items.first.item_id, foo_menu)
 
-        expect(subject.link).to include('/-/feature_flags')
-      end
+      expect(subject.link).to eq foo_path
     end
   end