Apple has brought many improvements to FaceTime in iOS 12. There’s Animoji, Memoji, Text effects, and a hell lot of other filters for FaceTime in iOS 12. But Apple hid away a critical feature from the main FaceTime screen to the three-dot menu — Flip camera. If you’ve noticed, the Flip camera button in FaceTime no longer exists on the main screen. Instead, the new button for stuff like Animoji, Text Effects, Shapes now take…