After the video interstitial is closed, there is a new space at the bottom of the KeyboardAvoidingView.

# Bug Report

**Before opening**

- [v] Did you try the latest release?
- [v] Did you look for existing issues?

**Ad Modules**
video interstitial

**Platforms**
iOS

**Versions**
14.4.2

**Ads Environment**
- Facebook app installed: yes
- Happens in test (dev build + device is marked as a test device): yes
- Happens in production (release build + **not** a test device): yes
- Facebook review status: [not submitted | approved]

**Current Behaviour**
If there is a KeyboardAvoidingView component on the screen, after the video interstitial is closed and the keyboard appears, a new space is created. Interstitial ads without video do not.

I tested on react native 0.63.4 and 0.64.0.
and I am using latest version of this libaray.

Comienza reproduciendo el comportamiento de iOS con React Native 0.63.4 o 0.64.0 usando un KeyboardAvoidingView; después muestra un interstitial de vídeo y ciérralo antes de abrir el teclado. Compara esto con un interstitial que no sea de vídeo; se considera terminado cuando no aparece espacio adicional en la parte inferior después de cerrar el interstitial de vídeo.

Escrito por el modelo de indexación a partir del texto del issue.