UI improvements for foldable devices

[kaibagley]

Hey everyone,

I made a discussion: #1081, but I think this is more suitable as a feature request/issue.

1. Variable apps-per-row in app drawer: When swapping between the thin front screen and wide unfolded screen, it would be great for the number of apps to respond to the width of the screen. At the moment I have 8, which looks fine for the wide screen, but is very tightly packed for the thin screen. Kvaesitso could just double the number of columns in the drawer if the device is open which might be the simplest way to deal with this.
2. Multiple columns for widgets: When scrolling down to the widgets, Kvaesitso fills the width of the screen with the widget, causing them to display as super wide. I think a good solution to this would be to have 2 columns when the device is open.

Thanks for the fantastic launcher, I wish I could contribute some code to this issue, however I know nothing about app development, and less about Kotlin....