Complete refactor to clean up project

lib/features/home/widgets/sheet_search_bar.dart

@@ -0,0 +1,38 @@
+import 'package:flutter/material.dart';
+
+/// Search bar for filtering sheets.
+///
+/// Provides a text input with search icon and clear button.
+class SheetSearchBar extends StatelessWidget {
+  final TextEditingController controller;
+  final VoidCallback onClear;
+
+  const SheetSearchBar({
+    super.key,
+    required this.controller,
+    required this.onClear,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: TextField(
+        controller: controller,
+        decoration: InputDecoration(
+          hintText: 'Search sheets...',
+          prefixIcon: const Icon(Icons.search),
+          suffixIcon: controller.text.isNotEmpty
+              ? IconButton(
+                  icon: const Icon(Icons.clear),
+                  onPressed: onClear,
+                )
+              : null,
+          border: OutlineInputBorder(
+            borderRadius: BorderRadius.circular(8.0),
+          ),
+        ),
+      ),
+    );
+  }
+}