Fix bug with missing year and add date to drag handle (#761)

mobile/lib/modules/home/ui/asset_list_v2/draggable_scrollbar_custom.dart

@@ -189,6 +189,7 @@ class ScrollLabel extends StatelessWidget {
           borderRadius: const BorderRadius.all(Radius.circular(16.0)),
           child: Container(
             constraints: constraints ?? _defaultConstraints,
+            padding: const EdgeInsets.symmetric(horizontal: 10.0),
             alignment: Alignment.center,
             child: child,
           ),
@@ -257,8 +258,6 @@ class DraggableScrollbarState extends State<DraggableScrollbar>
   Widget build(BuildContext context) {
     Text? labelText;
     if (widget.labelTextBuilder != null && _isDragInProcess) {
-      int numberOfItems = widget.child.itemCount;
-
       labelText = widget.labelTextBuilder!(_currentItem);
     }
 

mobile/lib/modules/home/ui/asset_list_v2/immich_asset_grid.dart

@@ -127,8 +127,8 @@ class ImmichAssetGrid extends HookConsumerWidget {
   }
 
   Text _labelBuilder(int pos) {
-    return Text(
-      "${renderList[pos].month} / ${renderList[pos].year}",
+    final date = renderList[pos].date;
+    return Text(DateFormat.yMMMd().format(date),
       style: const TextStyle(
         color: Colors.white,
         fontWeight: FontWeight.bold,
@@ -154,6 +154,7 @@ class ImmichAssetGrid extends HookConsumerWidget {
         controller: _itemScrollController,
         backgroundColor: Theme.of(context).hintColor,
         labelTextBuilder: _labelBuilder,
+        labelConstraints: const BoxConstraints(maxHeight: 28),
         scrollbarAnimationDuration: const Duration(seconds: 1),
         scrollbarTimeToFade: const Duration(seconds: 4),
         child: ScrollablePositionedList.builder(