* [NIFI-12698] dark mode, [NIFI-12687] status history axis label fix
* prettier
* lint fix
* update input form field styles to support dark mode
* adjust colors of flow status icons, and PG status icons, and softened the warn palette. Fix background of status history charts in dark mode
* fix provenance text color in dark mode
* leave the toggle for dark mode always visible to encourage testing
This closes#8320
c6f1d771e8