Bugfix for Kafka SASL credential fetch

Re-enable UI drop-downs, correctly merge when shard key absent, Kafka SASL creds

Bug fix correction to user permissions assignment for pool resources

Bug fix correction to user permissions assignment for pool resources

Column aliasing, service accounts, pagination in Config API, database connection pooling support

Auto-scaler scale pods to minimal, independent Prometheus operator

Intake spill-handling improvements, merge health metrics, and prometheus 3.2.1.

Bug fix for support switching to/from unified auth for services.

Bug fix for support switching to/from unified auth for services.

Bug fix for support switching to/from unified auth for services.