… API (#7884)

* Add validate for features field in workspace create and update API

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Changeset file for PR #7884 created/updated

* Changeset file for PR #7884 created/updated

* Move router outside align with other plugins

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Add ut and fix integration tests

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Import use case id from default nav groups

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Fix workspace routes UT

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Share feature config generator between publicn and server

Signed-off-by: Lin Wang <wonglam@amazon.com>

* Fix osd server crashed due to import from public

Signed-off-by: Lin Wang <wonglam@amazon.com>

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Signed-off-by: Lin Wang <wonglam@amazon.com>
Co-authored-by: opensearch-changeset-bot[bot] <154024398+opensearch-changeset-bot[bot]@users.noreply.github.com>
(cherry picked from commit 76de9a3)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>