feat: Make default depth configurable for table lineage graph view (commanded)

[Golodhros]

Summary of Changes

For certain deployments the graph view can get unreadable when it displays nodes at too great a depth. The app hardcodes the table lineage graph depth to 5 currently. This PR makes that value configurable using the config-types pattern that the rest of the front end uses.

There is some discussion about the feature in a previous PR that I botched:
#2069

Tests

Added a unit test for the function that gets the default graph depth

Documentation

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[Golodhros]

from #2075

[allisonsuarez]

LGTM, would have named just lineage depth instead of default lineage depth