go back to form after submitting an edit form

- 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 new colors using the css variables for theming in tailwind.config.js
- replace admin and
public colors with new variable enabled colors

- rename image fields on podcast, episode and persons for better clarity
- set different sizes
config for podcast cover, banner and persons avatars
- add tiny size for covers
- fix responsive
on admin forms

fix components in follow and remote action pages by calling new instances directly