By convention, master branch service definitions are aligned left. This service definition was conforming with the "indented by two spaces" convention for old-menu. Realigned.
Simplified .env substitution keys so left hand side (actual environment variable) equals right hand side (.env substitution keys).
Added volume path for backup folder to support IOTstackBackup.
Adds pgAdmin4:
Consequential changes to PostgreSQL container:
.envsubstitution keys so left hand side (actual environment variable) equals right hand side (.envsubstitution keys).Fixes #647
Signed-off-by: Phill Kelley 34226495+Paraphraser@users.noreply.github.com