storage*: content_get_partition(...) -> PagedResult[Content]
This reworked the content_get_partition so it returns Paged Result of Content.
This also inlines the content_get_range
algo within the content_get_partition
since it's no longer exposed as a dedicated endpoint.
And now the indexers can be reworked properly ;)
Related to T645
Test Plan
tox
Migrated from D3713 (view on Phabricator)