Fixed incorrect table name during migration

Previously, when the fabricator table name was non-default, incorrect table name was used during creation self-reference.

database/migrations/create_pages_table.php.stub

@@ -14,7 +14,7 @@ return new class extends Migration
             $table->string('slug')->unique();
             $table->string('layout')->default('default')->index();
             $table->json('blocks');
-            $table->foreignId('parent_id')->nullable()->constrained('pages')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreignId('parent_id')->nullable()->constrained(config('filament-fabricator.table_name', 'pages'))->cascadeOnDelete()->cascadeOnUpdate();
             $table->timestamps();
         });
     }