separated clients handlers, cart->checkout ppline

handlers/client/__init__.py

@@ -0,0 +1,15 @@
+from .menu import router as menu_router
+from .catalogue import router as catalogue_router
+from .products import router as products_router
+from .cart import router as cart_router
+from .checkout import router as checkout_router
+from .security import router as security_router
+
+routers = [
+    menu_router,
+    catalogue_router,
+    products_router,
+    cart_router,
+    checkout_router,
+    security_router,
+]