fix: checkpoint table action menu shouldn't vanish on polling [ET-277]

[EmilyBonar]

Ticket

ET-277

Description

Test Plan

With the flat runs flag off, go to the Checkpoints tab of a single trial experiment. There must be at least one checkpoint in the table for testing purposes.

• click the overflow icon at the far right of a table row to pull up the action menu for that checkpoint
• wait, do not click anything for ~10 seconds
• the action menu should still be visible
• test both the register and delete checkpoint actions to confirm that they still work as expected

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

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.

Project coverage is 50.14%. Comparing base (91d0b67) to head (0990695).
Report is 6 commits behind head on main.

Files	Patch %	Lines
.../pages/ExperimentDetails/ExperimentCheckpoints.tsx	0.00%	18 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9812      +/-   ##
==========================================
- Coverage   54.38%   50.14%   -4.24%     
==========================================
  Files        1261      938     -323     
  Lines      155770   126444   -29326     
  Branches     3540     3540              
==========================================
- Hits        84711    63411   -21300     
+ Misses      70921    62895    -8026     
  Partials      138      138              

Flag	Coverage Δ
harness	?
web	53.69% <0.00%> (-0.01%)	⬇️

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

Files	Coverage Δ
.../pages/ExperimentDetails/ExperimentCheckpoints.tsx	13.73% <0.00%> (-0.24%)	⬇️

... and 323 files with indirect coverage changes

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[keita-determined]

cannot reproduce the bug in the latest main.
how can i reproduce it?

[EmilyBonar]

cannot reproduce the bug in the latest main. how can i reproduce it?

you need to be on the experiment details page for a single trial experiment. the one that you linked looks to be multi-trial