fixes #163

- update CI4 to v4.1.9's stable production package
- update php and js dependencies to latest

- rename podlibre to adaures
- rename castopod-host to castopod
- simplify README and redirect to docs site
- move INSTALL and UPDATE docs
- add new gitlabci pipeline to deploy docs
- upgrade node to v16 in Dockerfile

The GLOB_BRACE flag is not available on non GNU systems, such as Solaris or Alpine Linux.

fixes #154

update seed scripts to prevent sql error when reloading install page

- tempfile uniqueness ensures that each process lives in its independent context
- add
writable/temp folder to store video clips temporary resources
- add videoClipWorkers config to
Admin for specifying the number of ffmpeg processes to run in parallel
- update video clip preview
background to better suit the end result

set two toggle switches to run housekeeping tasks seperately if needed

add run housekeeping button in general settings page

feat(transcript): parse srt subtitles into json file + add max file size info below audio file input

remove episode form warning + add javascript validation when uploading a file to check if it's too
big to upload

fixes #119

closes #134, #136

go back to form after submitting an edit form

update discord logo

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