Set height of block

[psrpinto]

Fixes #121

Screen recording

Screen.Recording.2022-11-23.at.16.30.00.mov

Next steps

1. Set block border and border-radius #136
2. Allow specifying the height unit #137

[akirk]

Could you add a padding-bottom to avoid the cut-off handle?

[psrpinto]

The cut-off handle is due to b3bba5f, which I'm now convinced was not the correct fix for the problem, as it creates other problems. I have some ideas on how to fix the rounded corners problem in another way, which I'm exploring now.

Adding padding fixes the cut-off handle but also adds padding, so I'd rather find a solution that addresses the root problem, which is b3bba5f.

[psrpinto]

@akirk I will address the issue with the cut-off handle in #136, if that works for you. I've also updated the PR description with a video that shows the final result.

[akirk]

Ok, let's do that in #136.