feat(docker/podman): self-hosting with docker/podman compose (#3312)

* initial files

* added testing files

* removed unused files

* cleaned additional mounts

* fixed sql init

* removed more unused files

* moved to docker folder

* revert package.json

* gitignore update

* env example comments and compose necessary healthcheck

* ghcr package impl

* updated dockerfile steps  for layer caching

* added development-stage to dockerfile to dev environment

* added documentation on how to use dockerfile and compose.yml

* fixed prettier issues

* fixed image tag

* removed workflow for later

docker/volumes/db/roles.sql

@@ -0,0 +1,7 @@
+-- NOTE: change to your own passwords for production environments
+\set pgpass `echo "$POSTGRES_PASSWORD"`
+
+ALTER USER authenticator WITH PASSWORD :'pgpass';
+ALTER USER pgbouncer WITH PASSWORD :'pgpass';
+ALTER USER supabase_auth_admin WITH PASSWORD :'pgpass';
+ALTER USER supabase_storage_admin WITH PASSWORD :'pgpass';