feat: Integrate sync status indicators in app title bar and home screen

lib/widgets/app_title_bar_io.dart

@@ -1,18 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:notas/platform/app_platform.dart';
-import 'package:notas/widgets/sync_status_indicator.dart';
 import 'package:window_manager/window_manager.dart';
 
 class AppTitleBar extends StatelessWidget {
   const AppTitleBar({
-    this.syncStatus = SyncStatus.idle,
-    this.syncErrorMessage,
     super.key,
   });
 
-  final SyncStatus syncStatus;
-  final String? syncErrorMessage;
-
   @override
   Widget build(BuildContext context) {
     if (isAndroid || isIOS) {
@@ -30,11 +24,6 @@ class AppTitleBar extends StatelessWidget {
                 'Mis Notas',
                 style: TextStyle(color: Colors.white70, fontSize: 13),
               ),
-              const SizedBox(width: 8),
-              SyncStatusIndicator(
-                status: syncStatus,
-                errorMessage: syncErrorMessage,
-              ),
             ],
           ),
         ),
@@ -42,10 +31,7 @@ class AppTitleBar extends StatelessWidget {
     }
 
     if (isLinux) {
-      return _KdeTitleBar(
-        syncStatus: syncStatus,
-        syncErrorMessage: syncErrorMessage,
-      );
+      return const _KdeTitleBar();
     }
 
     return SizedBox(
@@ -56,11 +42,6 @@ class AppTitleBar extends StatelessWidget {
           mainAxisSize: MainAxisSize.min,
           children: [
             const Text('Mis Notas', style: TextStyle(color: Colors.white)),
-            const SizedBox(width: 8),
-            SyncStatusIndicator(
-              status: syncStatus,
-              errorMessage: syncErrorMessage,
-            ),
           ],
         ),
       ),
@@ -69,13 +50,7 @@ class AppTitleBar extends StatelessWidget {
 }
 
 class _KdeTitleBar extends StatefulWidget {
-  const _KdeTitleBar({
-    this.syncStatus = SyncStatus.idle,
-    this.syncErrorMessage,
-  });
-
-  final SyncStatus syncStatus;
-  final String? syncErrorMessage;
+  const _KdeTitleBar();
 
   @override
   State<_KdeTitleBar> createState() => _KdeTitleBarState();
@@ -182,22 +157,6 @@ class _KdeTitleBarState extends State<_KdeTitleBar> with WindowListener {
                 ),
               ),
             ),
-            Positioned(
-              left: 0,
-              top: 0,
-              bottom: 0,
-              child: IgnorePointer(
-                child: Padding(
-                  padding: const EdgeInsets.symmetric(horizontal: 8),
-                  child: Center(
-                    child: SyncStatusIndicator(
-                      status: widget.syncStatus,
-                      errorMessage: widget.syncErrorMessage,
-                    ),
-                  ),
-                ),
-              ),
-            ),
             Positioned(
               right: 0,
               top: 0,