SHA should be generated on state + class name

Right now SHA is generated based on css strings, this won't scale once we start adding dynamic css, and class name toggling

Start by locating where the SHA is generated from CSS strings. Trace how state and class names are represented, then determine how the SHA should incorporate both inputs so dynamic CSS and class-name toggling remain distinguishable. Done means SHA generation uses the state and class name rather than CSS strings alone.

Written by the indexing model from the issue text.