Timer: Doesn't work correctly with non-qwerty keyboards

[mintsoft]

This is pretty niche, however it looks like https://github.com/duckduckgo/zeroclickinfo-spice/blob/master/share/spice/timer/timer.js#L213 doesn't work with alternative keyboard layouts; I'd guess that the VKcodes are different.

Based on: https://duck.co/ideas/idea/4408/q-timer-bug

cc @moollaza @mattr555

[mattr555]

We could just get rid of it and use the numericOnly() function there. It creates a "backspace effect" (that is, when you type, you see the letter briefly and then it goes away), but if the other way makes it unusable for people, then it might be an ok compromise.

[mwmiller]

it might be an ok compromise

Sounds OK to my ear.

[mintsoft]

Yeah sounds cool to me