upgrade to filament v4

app/Filament/Resources/Clients/RelationManagers/ExpensesRelationManager.php

@@ -1,10 +1,11 @@
 <?php
 
-namespace App\Filament\Resources\ClientResource\RelationManagers;
+namespace App\Filament\Resources\Clients\RelationManagers;
 
-use App\Filament\Resources\ExpenseResource;
+use Filament\Schemas\Schema;
+use Filament\Actions\Action;
+use App\Filament\Resources\Expenses\ExpenseResource;
 use App\Models\Expense;
-use Filament\Forms\Form;
 use Filament\Resources\RelationManagers\RelationManager;
 use Filament\Tables;
 use Filament\Tables\Columns\TextColumn;
@@ -16,16 +17,16 @@ class ExpensesRelationManager extends RelationManager
 
     protected static ?string $title = 'Expenses';
 
-    public function form(Form $form): Form
+    public function form(Schema $schema): Schema
     {
-        return $form
-            ->schema([]);
+        return $schema
+            ->components([]);
     }
 
     public function table(Table $table): Table
     {
         return ExpenseResource::table($table)->headerActions([
-            Tables\Actions\Action::make('New Expense')->action('openCreateForm'),
+            Action::make('New Expense')->action('openCreateForm'),
         ]);
     }