* User: Add sort option to user search
* Switch to an approach that uses the dashboard search options
* Cable user sort on the org endpoint
* Alias user table with u in org store
* Add test and cover orgs/:orgID/users/search endpoint
* Add test to userimpl store
* Simplify the store_test with sortopts.ParseSortQueryParam
* Account for PR feedback
* Positive check
* Update docs
* Update docs
* Switch to ErrOrFallback
Co-authored-by: Karl Persson <kalle.persson@grafana.com>
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Co-authored-by: Karl Persson <kalle.persson@grafana.com>