chore: minor fixes and formatting

dto/catalogue.py

@@ -1,6 +1,5 @@
 from dataclasses import dataclass
 from enum import Enum
-from typing import Optional, Union
 
 from aiogram.types import Message
 
@@ -16,12 +15,12 @@ class CatalogueType(Enum):
 
 @dataclass
 class CatalogueView:
-    view_type: Optional[CatalogueType] = None
-    category: Optional[Category] = None
-    children: Optional[list[Category]] = None
-    products: Optional[list[Product]] = None
+    view_type: CatalogueType | None = None
+    category: Category | None = None
+    children: list[Category] | None = None
+    products: list[Product] | None = None
     page: int = 0
-    parent_id: Union[int, str, None] = None
+    parent_id: int | str | None = None
     has_next: bool = False
     show_menu: bool = False
 
@@ -29,7 +28,7 @@ class CatalogueView:
 @dataclass
 class NewCatalogueElement:
     msg: Message
-    parent_id: Union[int, str]
+    parent_id: int | str
 
 
 @dataclass