Chromedriver added support for full page screenshots

[Luc45]

On the README it says:

VisualCeption uses the WebDriver module for making the screenshots. As a consequence we are not able to take screenshots via google chrome as the chromedriver does not allow full page screenshots.

However, it seems Chromedriver 86 added support for full-page screenshots.

Related:

• Implement full page screenshot for Chrome SeleniumHQ/selenium#8705
• https://chromium-review.googlesource.com/c/chromium/src/+/2300980