Features that would be good for NodeNorm ElasticSearch before deployment to ITRB CI

[gaurav]

These should be reported to https://github.com/biothings/pending.api/issues

• Add a /status endpoint that includes the version of Babel being loaded (e.g. https://nodenormalization-sri.renci.org/status)
• OTEL integration
• Add a SmartAPI frontend
• Remove preferred label logic from NodeNorm biothings/pending.api#304