[Android] Qt Webview: Textbox hidden behind keyboard

Steps to reproduce the issue

1. Open Minibrowser (Qt Webview example)
2. Open webpage https://www.qt.io/contact-us/
3. Click some of the textboxes at the bottom of the page

Expected outcome:
Webview is scrolled up before the keyboard is shown so that the keyboard doesn't hide the textbox behind it

Actual outcome:
Opened keyboard is hiding the clicked textbox