update CommonMark to v2 + add Autolink, SmartPunct and DisallowedRawHtml extensions

fixes #157

add run housekeeping button in general settings page

go back to form after submitting an edit form

update Forms.Section component to adapt to full width

feat(video-clip): generate video clips in the bg using a cron job + add video clip page + tidy up UI

remove console.logs + add @github/hotkey to replace markdown toolbar shortcuts

fix video colors to portray exact rgb values using libx264rgb encoding + image transparency issue
when overlaying images with php gd

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

- 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

- add rounded classes with conditional border-radius depending on screen width
- add ring-castopod
class to use on focus states

- add About podcast page
- use different layout for episode pages
- improve on user feedback with
design
- restructure app theme folders
- update js packages to latest versions

fixes #112, closes #55

soundbites js

app, admin, install and authentication views are now located in root themes/ folder