set two toggle switches to run housekeeping tasks seperately if needed

add run housekeeping button in general settings page

- configure service-worker using vite-plugin-pwa
- refactor Image entity to generate images of
different types based on size config
- add requirement for webp library for php gd to generate webp
images for instance
- add action to regenerate all instance images for eventual Images config
changes
- enhance google lighthouse metrics for pwa

set 6 base accent colors: pine, lake, jacaranda, crimson, amber and onyx