[Metrics V2] Backfill viz settings for compatible-series (#42970)

* [Metrics V2] Backfill viz settings for compatible-series

Fixes #42575

The BE should rely on the query when there is no corresponding viz setting.
If there is no graph.metrics setting, assume that all last-stage aggregations are used.
No graph.dimensions -> use breakouts.

* Fix tests

* Unskip e2e test

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Co-authored-by: Alexander Polyankin <alexander.polyankin@metabase.com>