refactor: use undraw for not_found component

lib/components/fallbacks/not_found.dart

@@ -1,30 +1,27 @@
+import 'package:flutter_undraw/flutter_undraw.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
-import 'package:spotube/collections/assets.gen.dart';
+import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
 import 'package:spotube/extensions/context.dart';
 
 class NotFound extends StatelessWidget {
-  final bool vertical;
-  const NotFound({super.key, this.vertical = false});
+  const NotFound({super.key});
 
   @override
   Widget build(BuildContext context) {
-    final widgets = [
-      SizedBox(
-        height: 150,
-        width: 150,
-        child: Assets.emptyBox.image(),
-      ),
-      Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        mainAxisAlignment: MainAxisAlignment.center,
+    return Column(
+      mainAxisSize: MainAxisSize.min,
       children: [
-          Text(context.l10n.nothing_found).large().semiBold(),
-          Text(
-            context.l10n.the_box_is_empty,
-          ).semiBold(),
-        ],
+        Undraw(
+          illustration: UndrawIllustration.empty,
+          height: 200 * context.theme.scaling,
+          color: context.theme.colorScheme.primary,
         ),
-    ];
-    return vertical ? Column(children: widgets) : Row(children: widgets);
+        const Gap(10),
+        Text(
+          context.l10n.nothing_found,
+          textAlign: TextAlign.center,
+        ).muted().small()
+      ],
+    );
   }
 }

lib/modules/player/player_queue.dart

@@ -81,7 +81,7 @@ class PlayerQueue extends HookConsumerWidget {
     );
 
     if (tracks.isEmpty) {
-      return const NotFound(vertical: true);
+      return const NotFound();
     }
 
     return Stack(

lib/pages/library/local_folder.dart

@@ -4,6 +4,7 @@ import 'dart:math';
 import 'package:collection/collection.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:flutter_undraw/flutter_undraw.dart';
 import 'package:fuzzywuzzy/fuzzywuzzy.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
@@ -320,10 +321,21 @@ class LocalLibraryPage extends HookConsumerWidget {
 
                             if (!trackSnapshot.isLoading &&
                                 filteredTracks.isEmpty) {
-                              return const Expanded(
-                                child: Row(
+                              return Expanded(
+                                child: Column(
                                   mainAxisAlignment: MainAxisAlignment.center,
-                                  children: [NotFound()],
+                                  children: [
+                                    Undraw(
+                                      illustration: UndrawIllustration.empty,
+                                      height: 200 * scale,
+                                      color: context.theme.colorScheme.primary,
+                                    ),
+                                    const Gap(10),
+                                    Text(
+                                      context.l10n.nothing_found,
+                                      textAlign: TextAlign.center,
+                                    ).muted().small()
+                                  ],
                                 ),
                               );
                             }

pubspec.yaml

@@ -184,6 +184,7 @@ flutter:
     - packages/flutter_undraw/assets/undraw/happy_music.svg
     - packages/flutter_undraw/assets/undraw/follow_me_drone.svg
     - packages/flutter_undraw/assets/undraw/taken.svg
+    - packages/flutter_undraw/assets/undraw/empty.svg
   fonts:
     - family: GeistSans
       fonts: