docs: clarify parameter description for custom_id

Signed-off-by: Lala Sabathil <[email protected]>

Author: Lulalaby

discord/ui/view.py

@@ -446,7 +446,7 @@ def get_item(self, custom_id: str | int) -> Item[V] | None:
         Parameters
         ----------
         custom_id: Union[:class:`str`, :class:`int`]
-            The custom_id of the item to get
+            The id of the item to get
 
         Returns
         -------