feat(shared-views): Only use positions from starred views

[MichaelSun48]

This PR makes it so that the GET endpoint only uses the position column from the GroupSearchViewStarred endpoint, rather than from GroupSearchView.

This was previously gated via a feature flag that only I have had access to, and it works perfectly fine. After this change, we should be able to safely drop the position column from the GroupSearchView table and clear out any usages.

depends on #86737 to be merged and run

[codecov]

❌ 1 Tests Failed:

Tests completed	Failed	Passed	Skipped
2080	1	2079	51

View the top 1 failed test(s) by shortest run time

tests.acceptance.test_organization_integration_detail_view.OrganizationIntegrationDetailView test_example_installation

Stack Traces | 33.1s run time

#x1B[1m#x1B[31mtests/acceptance/test_organization_integration_detail_view.py#x1B[0m:48: in test_example_installation
    assert integration
#x1B[1m#x1B[31mE   assert None#x1B[0m

To view more test analytics, go to the Test Analytics Dashboard
_{📋 Got 3 mins? Take this short survey to help us improve Test Analytics.}