Keeping left or right arrow pressed doesn't change visualisation width

[malespiaut]

Hello,

I'm using binocle v0.3.2 on Arch Linux from the official repo.

I don't know if this is intentionnal or a regression, but I used to decrease the width of the visualisation by keeping the left arrow key pressed.

Now, the width only decrease by one when I press and keep pressed the left arrow key, which means that I have to press the key repeatedly, or just use the mouse, which I find less convenient.

Best regards.

[sharkdp]

If this worked before, it's definitely an unwanted regression. Possibly due to #53 by @OttoAllmendinger?