Add a javascript property/API to query the support of the Virtual Keyboard

[dpierangeli]

I think the system needs an API to let the user know if the device defaults to the virtual keyboard or has an attached physical keyboard.

PROBLEM

A touch device that could have a physical keyboard attached OR not.

I want to set the focus on an input ONLY if the device has the physical keyboard attached, because its useful BUT the automatic opening of the virtual keyboard is a distraction.

EXAMPLE:

• use web discord on a windows tablet; everytime a channel is opened the virtual keyboard is displayed and is annoying

I have searched if another solution exist to this problem but i've not found it, so i tink that a new API could help solving this problem.