fix: Do not attempt to retrieve feature lineage when it is not enabled

[kristenarmes]

Description

There was a bug on the feature page where lineage was retrieved even when not enabled, throwing an error when there was nothing available at the endpoint.

Motivation and Context

Fixes errors when feature lineage is not enabled

How Has This Been Tested?

Ran the code locally and saw the feature lineage API was no longer being called after the change

Documentation

N/A

CheckList

• [X] PR title addresses the issue accurately and concisely
• [ ] Updates Documentation and Docstrings
• [ ] Adds tests
• [ ] Adds instrumentation (logs, or UI events)