test: add workspace tests

[johnkim-det]

Ticket

CM-466

Description

Adds e2e tests to cover filtering, sorting, and toggling the view on the Workspaces page. Also fixes some existing edge case issues (using correct user to create workspaces, testId for empty message components).

Test Plan

No additional release party testing required. Automated tests should pass.

Checklist

• Changes have been manually QA'd
• New features have been approved by the corresponding PM
• User-facing API changes have the "User-facing API Change" label
• Release notes have been added as a separate file under docs/release-notes/
  See Release Note for details.
• Licenses have been included for new code which was copied and/or modified from any external code

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 50.55%. Comparing base (c1499ac) to head (f67ca1a).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
webui/react/src/components/GridListRadioGroup.tsx	0.00%	11 Missing ⚠️
webui/react/src/pages/WorkspaceList.tsx	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9905      +/-   ##
==========================================
- Coverage   54.57%   50.55%   -4.03%     
==========================================
  Files        1250      938     -312     
  Lines      156266   127310   -28956     
  Branches     3598     3597       -1     
==========================================
- Hits        85283    64359   -20924     
+ Misses      70852    62820    -8032     
  Partials      131      131              

Flag	Coverage Δ
harness	?
web	54.40% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
webui/react/src/pages/WorkspaceList.tsx	0.00% <0.00%> (ø)
webui/react/src/components/GridListRadioGroup.tsx	0.00% <0.00%> (ø)

... and 333 files with indirect coverage changes

[thiagodallacqua-hpe]

Just a minor comment about test selectors convention... LGTM