E2E: QA Added acceptance tests for notification emails (#20918)

* Added tests for notification emails for content

* Bumped version

* Updated tests for notification permission in content

* Added appsettings.json for smtp tests

* Added smtp test project

* Updated nightly E2E test pipeline yaml file to run smtp project in the pipeline

* Fixed command to run smtp4dev in Docker

* Fixed pipeline

* Only run smtp tests on Linux

* Debugged

* Debugging

* Added step to stop smtp4dev container

* Debugging

* Updated port

* Reverted tests

* Added more tests for notification emails

* Formatted code

tests/Umbraco.Tests.AcceptanceTest/playwright.config.ts

@@ -102,6 +102,17 @@ export default defineConfig({
       use: {
         ...devices['Desktop Chrome']
       }
+    },
+    {
+      name: 'smtp',
+      testMatch: 'SMTP/*.spec.ts',
+      dependencies: ['setup'],
+      use: {
+        ...devices['Desktop Chrome'],
+        // Use prepared auth state.
+        ignoreHTTPSErrors: true,
+        storageState: STORAGE_STATE
+      }
     }
   ],
 });