TF-2901 Implement caching composer on log out

core/lib/presentation/utils/html_transformer/dom/image_transformers.dart

@@ -48,6 +48,7 @@ class ImageTransformer extends DomTransformer {
           imageSource: src
         );
         imageElement.attributes['src'] = imageBase64 ?? src;
+        imageElement.attributes['id'] ??= src;
       } else if (src.startsWith('https://') || src.startsWith('http://')) {
         if (!imageElement.attributes.containsKey('loading')) {
           imageElement.attributes['loading'] = 'lazy';

core/lib/presentation/utils/html_transformer/transform_configuration.dart

@@ -63,6 +63,8 @@ class TransformConfiguration {
 
   factory TransformConfiguration.forPreviewEmail() => TransformConfiguration.standardConfiguration;
 
+  factory TransformConfiguration.forRestoreEmail() => TransformConfiguration.fromDomTransformers([const ImageTransformer()]);
+
   factory TransformConfiguration.forPrintEmail() => TransformConfiguration.fromDomTransformers([
     if (PlatformInfo.isWeb)
       const RemoveTooltipLinkTransformer(),