feat: Implement soft deletes for customer, invoice, order, and transaction models, and add customer edit and trash management to the admin panel.

app/Models/Invoice.php

@@ -5,10 +5,11 @@ namespace App\Models;
 use App\Enums\Invoice\InvoiceStatus;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
 
 class Invoice extends Model
 {
-    use HasFactory;
+    use HasFactory, SoftDeletes;
     protected $table = 'invoice';
     public $timestamps = true;