backgrounds saved for light/dark modes are now stored as the absolute
path, so config keys chore.bg_dark and chore.bg_light now contain the
string of absolute path to image files.
in addition to this update, swww_single chore now copies the current
background image to the location of chore.current_bg, which can be used
to directly access the image of the current background.
- adds functions
- util_create_state
- util_read_state
- util_write_state
- util_delete_state
for state management API. see docs/about_states.md for details.
- moves functions from _reve.sh to _reve_utils.sh to prevent circular
imports.
