ref: ec1aec49349dab76af4e3063eb11e8a030c87de0
dir: widget/TODO
• figure out a way to reduce boilerplate for each widget • not sure if pulling every base widget dependency along the library is a great idea, maybe split the headers (<widget.h>, then <widget/textbox.h>, <widget/button.h>, etc)? • figure out widget-generated event handling