Improve Error Messaging for APOC Procedure Failure in Neo4jGraph (#5547)
## Improve Error Messaging for APOC Procedure Failure in Neo4jGraph
This commit revises the error message provided when the
'apoc.meta.data()' procedure fails. Previously, the message simply
instructed the user to install the APOC plugin in Neo4j. The new error
message is more specific.
Also removed an unnecessary newline in the Cypher statement variable:
`node_properties_query`.
Fixes #5545
## Who can review?
- @vowelparrot
- @dev2049