using the isLoading props for the when authenticating

src/screens/UserLoginScreen.tsx

@@ -140,6 +140,7 @@ const UserLoginScreen: MainStackScreenComponentProps<"userLoginScreen"> = ({ nav
 									// navigation.navigate("bottomTabs");
 									submit();
 								}}
+								isLoading={authenticationMutation.isPending}
 							/>
 							<Button
 								variant={"lightGray"}