feat: extensive settings for media controls through notification (#28)

* feat: add notification settings customisation options

* feat: add notification settings page and update routing

lib/settings/view/simple_settings_page.dart

@@ -0,0 +1,53 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_settings_ui/flutter_settings_ui.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+class SimpleSettingsPage extends HookConsumerWidget {
+  const SimpleSettingsPage({
+    super.key,
+    this.title,
+    this.sections,
+  });
+
+  final Widget? title;
+  final List<AbstractSettingsSection>? sections;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return Scaffold(
+      // appBar: AppBar(
+      //   title: title,
+      // ),
+      // body: body,
+      // an app bar which is bigger than the default app bar but on scroll shrinks to the default app bar with the title being animated
+      body: CustomScrollView(
+        slivers: [
+          SliverAppBar(
+            expandedHeight: 200.0,
+            floating: false,
+            pinned: true,
+            flexibleSpace: FlexibleSpaceBar(
+              title: title,
+              // background: Theme.of(context).primaryColor,
+            ),
+          ),
+          if (sections != null)
+            SliverList(
+              delegate: SliverChildListDelegate(
+                [
+                  ClipRRect(
+                    borderRadius: const BorderRadius.all(Radius.circular(20)),
+                    child: SettingsList(
+                      shrinkWrap: true,
+                      physics: const NeverScrollableScrollPhysics(),
+                      sections: sections!,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+}