* instant (dev) sandbox
* leave Dockerfile as is to pass deploy test
* fix comma
* fix prod build
* do not use "images exists" which docker does not support
* separate dev-mode flag
* Merge remote-tracking branch 'origin/main' into instant_sandbox
During docker build `npm install` running as node was exiting with 243 (EACCES) from trying to install the tgz files because `npm pack` created the files with 400 permissions on my system.
Olcan
Seth Troisi
Tyler