feat(metrics): do not filter in default remote write definitions

[swiatekm-sumo]

Merge most of the default remote writes into a single one that does (almost) no data transformations. We filter by job name instead of metric name.

• Node metrics still have their own, due to difficulty handling recording rule metrics.
• Collection internal metrics need some additional work before they can be handled this way.
• We need to manually drop Prometheus' scrape metrics.

This doesn't affect users who modified these, as that requires overriding the whole array, and this is therefore not a breaking change.

Checklist

• Changelog updated or skip changelog label added
• Documentation updated
• Template tests added for new features
• Integration tests added or modified for major features

[sumo-drosiek]

Looks fine for me. It would be nice to have some comparison e2e 😅
maybe some day