Pass context url from index.jsp to Nuxeo js client in Admin Console

As per slack conversation https://nuxeo.slack.com/archives/CJVB4LKT3/p1721032170826179?thread_ts=1720780373.191009&cid=CJVB4LKT3 ,

we need to pass the url while instantiating nuxeo js client to correctly pick the domain value

Steps 

1. Integrate index.jsp as a starting point for angular app on production builds. For development build, index.html will be used
2. pass context from index.jsp as an attribute to <app> root tag for angular
3. Read the attribute from angular app to get the context url.
4. Pass context url while instantiating nuxeo js client object.