feat: Enhance SearchAppBar with debounce and customizable padding

- Added debounce functionality for search input in SearchAppBar to improve performance.
- Introduced a controller parameter to allow external control of the search input.
- Made padding customizable via a new padding parameter.
- Improved leading button handling with an option to show/hide it.

feat: Implement Category Editor Dialog

- Created a new CategoryEditorDialog widget for editing category details.
- Allows users to set category name, color, and icon with a preview.
- Supports creating new categories with a confirmation dialog.

feat: Add Category Menu Button

- Introduced CategoryMenuButton for selecting categories with an option to create new ones.
- Displays a menu with existing categories and allows editing.
- Supports dynamic background color based on active state.

feat: Create Note List View

- Added NoteListView widget for displaying a list of notes with reordering capability.
- Integrates refresh functionality and displays last sync time.
- Supports selection and deletion of notes with visual feedback.

lib/widgets/search_app_bar.dart

@@ -1,29 +1,42 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
+
 import 'package:notas/theme/app_palette.dart';
 
 class SearchAppBar extends StatefulWidget {
   const SearchAppBar({
     super.key,
+    this.controller,
     this.onMenuPressed,
     this.onLeadingPressed,
     this.leadingIcon = Icons.menu,
     this.leadingTooltip = 'Menú',
     this.leadingWidget,
+    this.showLeadingButton = true,
     this.trailingWidget,
     this.onSearchChanged,
     this.searchHint = 'Buscar notas...',
+    this.searchMaxWidth = 600,
+    this.searchDebounceDuration = const Duration(milliseconds: 300),
+    this.padding = const EdgeInsets.only(left: 8, right: 20, top: 7, bottom: 7),
     this.showSearch = true,
     this.titleText,
   });
 
+  final TextEditingController? controller;
   final VoidCallback? onMenuPressed;
   final VoidCallback? onLeadingPressed;
   final IconData leadingIcon;
   final String leadingTooltip;
   final Widget? leadingWidget;
+  final bool showLeadingButton;
   final Widget? trailingWidget;
   final ValueChanged<String>? onSearchChanged;
   final String searchHint;
+  final double searchMaxWidth;
+  final Duration searchDebounceDuration;
+  final EdgeInsetsGeometry padding;
   final bool showSearch;
   final String? titleText;
 
@@ -32,60 +45,87 @@ class SearchAppBar extends StatefulWidget {
 }
 
 class _SearchAppBarState extends State<SearchAppBar> {
-  late TextEditingController _searchController;
-  void _onSearchChanged() {
+  late final TextEditingController _searchController;
+  late final bool _ownsController;
+  Timer? _debounceTimer;
+
+  void _refreshState() {
     setState(() {});
   }
 
+  void _handleSearchInput(String value) {
+    _refreshState();
+
+    if (widget.onSearchChanged == null) {
+      return;
+    }
+
+    _debounceTimer?.cancel();
+    _debounceTimer = Timer(widget.searchDebounceDuration, () {
+      if (!mounted) {
+        return;
+      }
+
+      widget.onSearchChanged?.call(value.trim());
+    });
+  }
+
   @override
   void initState() {
     super.initState();
-    _searchController = TextEditingController()..addListener(_onSearchChanged);
+    _searchController = widget.controller ?? TextEditingController();
+    _ownsController = widget.controller == null;
+    _searchController.addListener(_refreshState);
   }
 
   @override
   void dispose() {
-    _searchController.removeListener(_onSearchChanged);
-    _searchController.dispose();
+    _debounceTimer?.cancel();
+    _searchController.removeListener(_refreshState);
+    if (_ownsController) {
+      _searchController.dispose();
+    }
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     final AppPalette palette = Theme.of(context).extension<AppPalette>()!;
+    final Widget? leadingControl = widget.leadingWidget ??
+        (widget.showLeadingButton
+            ? IconButton(
+                onPressed: widget.onLeadingPressed ?? widget.onMenuPressed,
+                icon: Icon(
+                  widget.leadingIcon,
+                  color: palette.textSecondary,
+                  size: 20,
+                ),
+                tooltip: widget.leadingTooltip,
+                splashRadius: 18,
+                constraints: const BoxConstraints(minWidth: 40, minHeight: 40),
+              )
+            : null);
 
     return Container(
       decoration: BoxDecoration(
         color: palette.transparent,
         border: Border(bottom: BorderSide(color: palette.border, width: 0.5)),
       ),
-      padding: const EdgeInsets.only(left: 8, right: 20, top: 7, bottom: 7),
+      padding: widget.padding,
       child: Row(
         children: [
-          IconButton(
-            onPressed: widget.onLeadingPressed ?? widget.onMenuPressed,
-            icon: Icon(
-              widget.leadingIcon,
-              color: palette.textSecondary,
-              size: 20,
-            ),
-            tooltip: widget.leadingTooltip,
-            splashRadius: 18,
-            constraints: const BoxConstraints(minWidth: 40, minHeight: 40),
-          ),
-          if (widget.leadingWidget != null) ...[
+          if (leadingControl != null) ...[
+            leadingControl,
             const SizedBox(width: 8),
-            Center(child: widget.leadingWidget!),
           ],
-          const SizedBox(width: 8),
           Expanded(
             child: widget.showSearch
                 ? Center(
                     child: ConstrainedBox(
-                      constraints: const BoxConstraints(maxWidth: 600),
+                      constraints: BoxConstraints(maxWidth: widget.searchMaxWidth),
                       child: TextField(
                         controller: _searchController,
-                        onChanged: widget.onSearchChanged,
+                        onChanged: _handleSearchInput,
                         style: TextStyle(
                           color: palette.textPrimary,
                           fontSize: 13,
@@ -104,6 +144,7 @@ class _SearchAppBarState extends State<SearchAppBar> {
                                     size: 18,
                                   ),
                                   onPressed: () {
+                                    _debounceTimer?.cancel();
                                     _searchController.clear();
                                     widget.onSearchChanged?.call('');
                                   },