NavigationNodeCollection is used even without type checking, so import out of the if condition

Author: bhavberi

office365/sharepoint/navigation/node.py

@@ -1,12 +1,10 @@
-from typing import TYPE_CHECKING, Optional
+from typing import Optional
 
 from office365.runtime.paths.resource_path import ResourcePath
 from office365.sharepoint.entity import Entity
+from office365.sharepoint.navigation.node_collection import NavigationNodeCollection
 from office365.sharepoint.translation.user_resource import UserResource
 
-if TYPE_CHECKING:
-    from office365.sharepoint.navigation.node_collection import NavigationNodeCollection
-
 
 class NavigationNode(Entity):
     """