* [FEATURE] Embed static assets in Go binary
* Refactor/consolidate code and specify public_html via configuration
* Update docs and config template for assets
* Update AUR package pre-requisites and systemd unit
* Include static assets as Buildkite and GitHub artifacts
* Remove references to PUBLIC_DIR
* Only serve assets via embedded filesystem and remove configuration references
* Update authelia-scripts helper to build the embedded filesystem
* Mock the embedded filesystem for unit tests
Add to gitignore to ensure this isn't overwritten.
* Move go:generate to satisfy linter
