Fix typing import location

Author: schloerke

shiny/_main.py

@@ -10,11 +10,12 @@
 import sys
 import types
 from pathlib import Path
-from typing import Any, NotRequired, Optional, TypedDict
+from typing import Any, Optional
 
 import click
 import uvicorn
 import uvicorn.config
+from _typing_extensions import NotRequired, TypedDict
 
 import shiny