Rename to BrandManager

lib/main.dart

@@ -4,18 +4,18 @@ import 'services/authentication_manager.dart';
 import 'views/content_view.dart';
 
 void main() {
-  runApp(const BmManagerApp());
+  runApp(const BrandManagerApp());
 }
 
-class BmManagerApp extends StatelessWidget {
-  const BmManagerApp({super.key});
+class BrandManagerApp extends StatelessWidget {
+  const BrandManagerApp({super.key});
 
   @override
   Widget build(BuildContext context) {
     return ChangeNotifierProvider(
       create: (_) => AuthenticationManager(),
       child: MaterialApp(
-        title: 'BM Manager',
+        title: 'BrandManager',
         debugShowCheckedModeBanner: false,
         theme: ThemeData(
           colorScheme: ColorScheme.fromSeed(