[Test Coverage Improvement] Add Tests for Saved Object Sharing

[cliu123]

There's no existing tests for the saved object sharing functionality to capture bugs like the one reported on the issue.

[peternied]

[Triage] Could you provide what these test(s) should exercise in the product?

[cliu123]

The sharing saved object with url feature does not have test coverage, so the issue was not caught by automation tests.

[davidlago]

Closing this issue as work is shifting towards the workspaces initiative, where sharing saved objects will be improved.