Added support for S3 storage classes (#28319)

* Added support for S3 storage classes

* Added missing translations for S3 storage class

* Changed default storage class values to preserve original behaviour

* Changed storage class description and example

* Fix translations ordering

* Change configuration defaults to empty strings

* Remove redundant empty string check

* Validate storage class variable against constants from S3 API docs

* Validate export storage class against constants

* Use slices for config validation

* Applied patch for translation ordering

e2e-tests/playwright/support/server/default_config.ts

@@ -319,6 +319,7 @@ const defaultServerConfig: AdminConfig = {
         AmazonS3Trace: false,
         AmazonS3RequestTimeoutMilliseconds: 30000,
         AmazonS3UploadPartSizeBytes: 5242880,
+        AmazonS3StorageClass: '',
         DedicatedExportStore: false,
         ExportDriverName: 'local',
         ExportDirectory: './data/',
@@ -335,6 +336,7 @@ const defaultServerConfig: AdminConfig = {
         ExportAmazonS3RequestTimeoutMilliseconds: 30000,
         ExportAmazonS3PresignExpiresSeconds: 21600,
         ExportAmazonS3UploadPartSizeBytes: 104857600,
+        ExportAmazonS3StorageClass: '',
     },
     EmailSettings: {
         EnableSignUpWithEmail: true,