Update main.py

main.py

@@ -89,7 +89,7 @@ async def register_post(
     registered_user = register(user, db)
     return RedirectResponse("/registration_successful")
     
-@app.get("/registration_successful", response_class=HTMLResponse)
+@app.post("/registration_successful", response_class=HTMLResponse)
 async def registration_successful(request: Request):
     return templates.TemplateResponse("registration_successful.html", {"request": request})