taffybar[screensaver]: add a screensaver widget that uses brightness and xprintidle
taffybar[screensaver]: 10s => 10min
taffybar[screensaver]: add "idle" to display
taffybar[screensaver]: add an override file
brightness: add a buffer +/- 2 for xrandr bracket jumping
Merge branch 'master' into nuc
taffybar: add screensaver and brightness