Added order update API and docs for everything

Author: mmzeynalli

src/integrify/clopos/client.py

@@ -38,7 +38,6 @@
     Venue,
 )
 from integrify.clopos.schemas.objects.sub import LineItem
-from integrify.clopos.schemas.request import GetProductsRequest
 from integrify.clopos.schemas.response import (
     AuthResponse,
     BaseResponse,

src/integrify/clopos/schemas/request.py

@@ -1,6 +1,6 @@
 from decimal import Decimal
 
-from pydantic import BaseModel, Field, model_serializer
+from pydantic import Field, model_serializer
 
 from integrify.api import PayloadBaseModel
 from integrify.clopos import env