Fixing task cancellation in main

src/main.py

@@ -7,11 +7,18 @@ from endpoints.bettwaage import router as bettwaage_router
 from endpoints.handlers.fritz import track_network_devices
 
 app = FastAPI()
-asyncio.create_task(track_network_devices())
-asyncio.create_task(log_bed_weights())
+
+loop = asyncio.new_event_loop()
+loop.create_task(track_network_devices())
+loop.create_task(log_bed_weights())
 
 app.include_router(hue_router, prefix="/hue", tags=["hue"])
 app.include_router(bettwaage_router, prefix="/bettwaage", tags=["bett"])
 
 if __name__ == "__main__":
-    asyncio.run(lambda: uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True))
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)
+    # Ende tasks
+    tasks = asyncio.all_tasks(loop)
+    [t.cancel() for t in tasks]
+    asyncio.gather(*tasks)
+    loop.stop()