Use lasted TTS screenshots in FAQ

[Jean-BaptisteC]

This PR updates:

• Settings screenshots with app settings used on most devices
• TTS settings in app

Maybe I need to specify a static size in markdown files?

[biodranik]

@Jean-BaptisteC zola can pre-process and resize images automatically. It would be great to leverage this opportunity to:

1. have smaller images for faster loading on mobiles and non-mac computers
2. have better quality (2x) retina images on macs/iPads/4K screens with a high resolution

Especially images should be resized in news section. It requires pagination by the way.

CC @strump