thumbhash improvements

thumbhash render box

refactor

wip

rebase

mobile/lib/widgets/common/thumbhash_placeholder.dart

@@ -1,31 +1,14 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:immich_mobile/widgets/asset_grid/thumbnail_placeholder.dart';
-import 'package:immich_mobile/widgets/common/fade_in_placeholder_image.dart';
+import 'package:immich_mobile/presentation/widgets/images/thumbnail.widget.dart';
 import 'package:octo_image/octo_image.dart';
 
-/// Simple set to show [OctoPlaceholder.circularProgressIndicator] as
-/// placeholder and [OctoError.icon] as error.
-OctoSet blurHashOrPlaceholder(Uint8List? blurhash, {BoxFit? fit, Text? errorMessage}) {
-  return OctoSet(
-    placeholderBuilder: blurHashPlaceholderBuilder(blurhash, fit: fit),
-    errorBuilder: blurHashErrorBuilder(blurhash, fit: fit, message: errorMessage),
-  );
-}
-
-OctoPlaceholderBuilder blurHashPlaceholderBuilder(Uint8List? blurhash, {BoxFit? fit}) {
-  return (context) => blurhash == null
-      ? const ThumbnailPlaceholder()
-      : FadeInPlaceholderImage(
-          placeholder: const ThumbnailPlaceholder(),
-          image: MemoryImage(blurhash),
-          fit: fit ?? BoxFit.cover,
-        );
+OctoPlaceholderBuilder blurHashPlaceholderBuilder(String? blurhash, {required BoxFit fit}) {
+  return (context) => Thumbnail(blurhash: blurhash, fit: fit);
 }
 
 OctoErrorBuilder blurHashErrorBuilder(
-  Uint8List? blurhash, {
-  BoxFit? fit,
+  String? blurhash, {
+  BoxFit fit = BoxFit.cover,
   Text? message,
   IconData? icon,
   Color? iconColor,