Reorganize QA scenarios based on the DevOps cycle

Signed-off-by: Rémy Coutable <remy@rymai.me>

qa/qa/specs/features/browser_ui/1_manage/login/log_in_spec.rb

+module QA
+  context :manage, :smoke do
+    describe 'basic user login' do
+      it 'user logs in using basic credentials' do
+        Runtime::Browser.visit(:gitlab, Page::Main::Login)
+        Page::Main::Login.act { sign_in_using_credentials }
+
+        # TODO, since `Signed in successfully` message was removed
+        # this is the only way to tell if user is signed in correctly.
+        #
+        Page::Menu::Main.perform do |menu|
+          expect(menu).to have_personal_area
+        end
+      end
+    end
+  end
+end

qa/qa/specs/features/browser_ui/4_verify/runner/register_runner_spec.rb

+# frozen_string_literal: true
+
+module QA
+  context :verify, :docker do
+    describe 'Runner registration' do
+      let(:executor) { "qa-runner-#{Time.now.to_i}" }
+
+      after do
+        Service::Runner.new(executor).remove!
+      end
+
+      it 'user registers a new specific runner' do
+        Runtime::Browser.visit(:gitlab, Page::Main::Login)
+        Page::Main::Login.act { sign_in_using_credentials }
+
+        Factory::Resource::Runner.fabricate! do |runner|
+          runner.name = executor
+        end
+
+        Page::Project::Settings::CICD.perform do |settings|
+          sleep 5 # Runner should register within 5 seconds
+          settings.refresh
+
+          settings.expand_runners_settings do |page|
+            expect(page).to have_content(executor)
+            expect(page).to have_online_runner
+          end
+        end
+      end
+    end
+  end
+end