Feature Request: customizable spacebar height

[Paradachshund]

Is your feature request related to a problem? Please describe.
I frequently miss the spacebar when typing quickly. Other buttons aren't a problem, so this isn't solvable by enlarging the entire keyboard. For a reference point, my thumb often ends up right in between the spacebar and the "b" key. This spot always presses "b", not spacebar.

Describe the solution you'd like
I think my issue could solved one of two ways:

1. Add the ability to increase the spacebar height separately from the keyboard height. In my case it getting closer to the lowest row of buttons would work fine.
2. Increase the hitbox size of the space bar to be taller than the button appears to be. In other words, make it so the hitbox for the spacebar is closer to the bottom row of buttons.

I've really enjoyed most other aspects of heliboard so far; great work overall. This one issue is quite a problem for me, though, and I'm considering switching to another keyboard for the moment because of it. Thanks for your consideration.