thumbhash improvements

thumbhash render box

refactor

wip

rebase

mobile/lib/presentation/widgets/timeline/segment_builder.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/widgets.dart';
 import 'package:immich_mobile/domain/models/timeline.model.dart';
+import 'package:immich_mobile/presentation/widgets/images/thumbnail.widget.dart';
 import 'package:immich_mobile/presentation/widgets/timeline/constants.dart';
 import 'package:immich_mobile/presentation/widgets/timeline/fixed/row.dart';
-import 'package:immich_mobile/widgets/asset_grid/thumbnail_placeholder.dart';
 
 abstract class SegmentBuilder {
   final List<Bucket> buckets;
@@ -23,12 +23,13 @@ abstract class SegmentBuilder {
     int count, {
     Size size = kTimelineFixedTileExtent,
     double spacing = kTimelineSpacing,
-  }) => RepaintBoundary(
-    child: FixedTimelineRow(
-      dimension: size.height,
-      spacing: spacing,
-      textDirection: Directionality.of(context),
-      children: List.generate(count, (_) => ThumbnailPlaceholder(width: size.width, height: size.height)),
-    ),
-  );
+  }) =>
+      RepaintBoundary(
+        child: FixedTimelineRow(
+          dimension: size.height,
+          spacing: spacing,
+          textDirection: Directionality.of(context),
+          children: List.filled(count, const Thumbnail()),
+        ),
+      );
 }