CDD-3481: Export Users to CSV

[itsthatianguy]

Description

This PR includes the following:

• Export button added to ... on Users page
• Exports Users and their assigned Permissions to a CSV file
• Row only contains user id if they have no permissions
• Otherwise one row per assigned permission
• Filename timestamped
• Audit log created when exported

Fixes #CDD-3481

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Type of change

Please select the options that are relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Tech debt item (this is focused solely on addressing any relevant technical debt)

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Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests at the right levels to prove my change is effective
• I have added screenshots or screen grabs where appropriate
• I have added docstrings in the correct style (google)

[MeganB-2]

Potentially add a test for no users to test the CSV headers generation? Or is this suitably covered by checking

self.assertEqual(
            rows[0], "User ID,Permission Set,Gives Global Access,Permissions\r\n"
        )

every time?

[MeganB-2]

Just a question - where does the combination of theme and geography_type come from? To determine global access or not

[MeganB-2]

The ticket has the following AC's that I don't think are covered here?

13. e2e tests for presence and absence of Export functionality (found on page in ellipses)
14. Provide documentation outlining CSV columns/data as KOP

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud