Add new method to "Verification Code Not Received When Signing In with Apple Account" (Troubleshooting Guide)

[bernzrdo]

The method presented on the "iOS/iPadOS 18.1+" section did not work for me. The only method that worked was:

1. Log in SideStore.
2. When it asks for a verification code, disable all connection to the internet. (Wi-Fi and mobile data)
3. Open the "Settings" app.
4. Tap on your name at the top of the screen.
5. Navigate to "Sign-In and Security."
6. Choose "Get Verification Code."
7. Go back to SideStore.
8. Turn on connection to the internet.
9. Input the verification code and log in.