[CLD-9238] Direct preview user to proper team based on use case

[nickmisasi]

Summary

Accepts a use case via the CWS login flow, and directs the user to the proper team based off of that use case.

This PR also includes a change to ensure that the dismissal of the Preview Modal persists through refreshes.

This PR also includes a small change to the notification announcement bar, hiding it in cloud previews so as not to be shown overtop of the Preview banner.

Ticket Link

https://mattermost.atlassian.net/browse/CLD-9238

Screenshots

Release Note

None

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 72.00000% with 7 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
server/channels/api4/user.go	50.00%	5 Missing and 2 partials :warning:

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[nickmisasi]

/update-branch

[mattermost-build]

Error trying to update the PR. Please do it manually.

[nickmisasi]

/update-branch

[github-actions[bot]]

⚠️ One or more flaky tests detected ⚠️

• Failing job: github.com/mattermost/mattermost:Postgres with binary parameters
• Double check your code to ensure you haven't introduced a flaky test.
• If this seems to be unrelated to your changes, submit a separate pull request to skip the flaky tests (e.g. 23360) and file JIRA ticket (e.g. MM-52743) for later investigation.

Test	Retries
Postgres with binary parameters (Results)
com/mattermost/mattermost/server/v8/enterprise/message_export.TestRunExportJobE2EByType/using_dedicated_export_filestore/actiance_e2e_3_-_test_create,_update,_delete_xml_fields	1
com/mattermost/mattermost/server/v8/enterprise/message_export.TestRunExportJobE2EByType/using_dedicated_export_filestore	1
com/mattermost/mattermost/server/v8/enterprise/message_export.TestRunExportJobE2EByType	1

[github-actions[bot]]

⚠️ One or more flaky tests detected ⚠️

• Failing job: github.com/mattermost/mattermost:Generate Test Coverage
• Double check your code to ensure you haven't introduced a flaky test.
• If this seems to be unrelated to your changes, submit a separate pull request to skip the flaky tests (e.g. 23360) and file JIRA ticket (e.g. MM-52743) for later investigation.

Test	Retries
Generate Test Coverage (Results)
com/mattermost/mattermost/server/v8/channels/app.TestDeleteCPAValues	1