Complete refactor to clean up project

lib/shared/input/pedal_shortcuts.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+/// Widget that handles Bluetooth pedal and keyboard shortcuts for page turning.
+///
+/// Listens for arrow key presses and invokes the appropriate callback:
+/// - Arrow Down/Right: Turn page forward
+/// - Arrow Up/Left: Turn page backward
+class PedalShortcuts extends StatelessWidget {
+  final Widget child;
+  final VoidCallback onPageForward;
+  final VoidCallback onPageBackward;
+
+  const PedalShortcuts({
+    super.key,
+    required this.child,
+    required this.onPageForward,
+    required this.onPageBackward,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return CallbackShortcuts(
+      bindings: _buildBindings(),
+      child: Focus(autofocus: true, child: child),
+    );
+  }
+
+  Map<ShortcutActivator, VoidCallback> _buildBindings() {
+    return {
+      // Forward navigation
+      const SingleActivator(LogicalKeyboardKey.arrowDown): onPageForward,
+      const SingleActivator(LogicalKeyboardKey.arrowRight): onPageForward,
+
+      // Backward navigation
+      const SingleActivator(LogicalKeyboardKey.arrowUp): onPageBackward,
+      const SingleActivator(LogicalKeyboardKey.arrowLeft): onPageBackward,
+    };
+  }
+}

lib/shared/widgets/edit_sheet_bottom_sheet.dart

@@ -0,0 +1,106 @@
+import 'package:flutter/material.dart';
+
+import '../../core/models/sheet.dart';
+
+/// Callback when sheet metadata is saved.
+typedef SheetEditCallback = void Function(String newName, String newComposer);
+
+/// Bottom sheet for editing sheet metadata (name and composer).
+class EditSheetBottomSheet extends StatefulWidget {
+  final Sheet sheet;
+  final SheetEditCallback onSave;
+
+  const EditSheetBottomSheet({
+    super.key,
+    required this.sheet,
+    required this.onSave,
+  });
+
+  @override
+  State<EditSheetBottomSheet> createState() => _EditSheetBottomSheetState();
+}
+
+class _EditSheetBottomSheetState extends State<EditSheetBottomSheet> {
+  final _formKey = GlobalKey<FormState>();
+  late final TextEditingController _nameController;
+  late final TextEditingController _composerController;
+
+  @override
+  void initState() {
+    super.initState();
+    _nameController = TextEditingController(text: widget.sheet.name);
+    _composerController = TextEditingController(
+      text: widget.sheet.composerName,
+    );
+  }
+
+  @override
+  void dispose() {
+    _nameController.dispose();
+    _composerController.dispose();
+    super.dispose();
+  }
+
+  void _handleSave() {
+    if (!_formKey.currentState!.validate()) return;
+
+    widget.onSave(_nameController.text.trim(), _composerController.text.trim());
+    Navigator.pop(context);
+  }
+
+  String? _validateNotEmpty(String? value) {
+    if (value == null || value.trim().isEmpty) {
+      return 'This field cannot be empty';
+    }
+    return null;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: EdgeInsets.fromLTRB(
+        16,
+        16,
+        16,
+        MediaQuery.of(context).viewInsets.bottom + 16,
+      ),
+      child: Form(
+        key: _formKey,
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            Text(
+              'Edit Sheet',
+              style: Theme.of(context).textTheme.titleLarge,
+              textAlign: TextAlign.center,
+            ),
+            const SizedBox(height: 16),
+            TextFormField(
+              controller: _nameController,
+              validator: _validateNotEmpty,
+              decoration: const InputDecoration(
+                labelText: 'Sheet Name',
+                border: OutlineInputBorder(),
+              ),
+              textInputAction: TextInputAction.next,
+            ),
+            const SizedBox(height: 12),
+            TextFormField(
+              controller: _composerController,
+              validator: _validateNotEmpty,
+              decoration: const InputDecoration(
+                labelText: 'Composer',
+                border: OutlineInputBorder(),
+              ),
+              textInputAction: TextInputAction.done,
+              onFieldSubmitted: (_) => _handleSave(),
+            ),
+            const SizedBox(height: 16),
+            ElevatedButton(onPressed: _handleSave, child: const Text('Save')),
+          ],
+        ),
+      ),
+    );
+  }
+}