Renamed KeyboardKey to KeyCode, redid the encoding layout (preemtively getting ready for SDL later as well)
I got the input box working but it has no constraints and needs to be lifted. The scroll box construction does as well.
Moved core ui to its own folder.
Worked on theming (proper light and dark theme)
Began to work on the scroll box widget and input box constructions
I added back a script for flattening the codebase: gen_flattened_codebase.ps1
