Admin panel user search enhancements

[hanzlamateen]

Summary

Note accountIdentifier column should be added in database identity_provider table for these changes to work.

Following are the changes

• Display userId & linked account in table on /admin/users
• Save major username/email from each identity-provider in new accountIdentifier column
• Show ID and accountIdentifier of all linked IPs in user View drawer
• user.find, when passed action: admin, will search the ID and linked accountIdentifiers as well as name

AdminUserEnhancements.mp4

References

closes #7160

Checklist

• If this PR is still a WIP, convert to a draft
• ensure all checks pass
• When this PR is ready, mark it as "Ready for review"
• Changes have been manually QA'd
• Changes reviewed by at least 2 approved reviewer

QA Steps

List any additional steps required to QA the changes of this PR, as well as any supplemental images or videos.

[barankyle]

Looks great!