This PR upgrades node base image to node:18.14.0-alpine3.16
This fixes:
Critical vulnerability:
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
High vulnerability:
CWE-416: Double Free
CWE-416: Use After Free
* moved building to Dockefile instead of entrypoint
* moved enviroment variable to gloabl
* updated to use process env during build to allow use of window global var
* added new line
* updated constants for window.jambonz
* removed NODE_ENV in favor of just window.JAMBONZ
* removed unrequired and change const per pull request