Adds a toggle to show/hide fields in sample modal that have undefined…

[manivoxel51]

What changes are proposed in this pull request?

This was merged into develop by mistake.

How is this patch tested? If it is not, please explain why.

(Details)

Release Notes

Is this a user-facing change that should be mentioned in the release notes?

• No. You can skip the rest of this section.
• Yes. Give a description of this change to be included in the release
  notes for FiftyOne users.

(Details in 1-2 sentences. You can just refer to another PR with a description
if this PR is part of a larger change.)

What areas of FiftyOne does this PR affect?

• App: FiftyOne application changes
• Build: Build and test infrastructure changes
• Core: Core fiftyone Python library changes
• Documentation: FiftyOne documentation changes
• Other

[codecov]

Codecov Report

Attention: 154 lines in your changes are missing coverage. Please review.

Comparison is base (9c834a0) 15.87% compared to head (6a4d043) 15.86%.
Report is 15 commits behind head on release/v0.23.2.

Files	Patch %	Lines
...pp/packages/core/src/components/Actions/Tagger.tsx	0.00%	35 Missing ⚠️
...p/packages/core/src/components/Actions/Options.tsx	0.00%	31 Missing ⚠️
app/packages/embeddings/src/tracesToData.tsx	0.00%	23 Missing ⚠️
app/packages/looker/src/elements/imavid/index.ts	0.00%	17 Missing ⚠️
.../src/components/Sidebar/Entries/PathValueEntry.tsx	0.00%	16 Missing ⚠️
app/packages/core/src/components/Modal/Modal.tsx	0.00%	12 Missing ⚠️
...looker/src/lookers/imavid/ima-vid-frame-samples.ts	0.00%	7 Missing ⚠️
app/packages/looker/src/elements/video.ts	0.00%	4 Missing ⚠️
...packages/looker/src/elements/imavid/play-button.ts	0.00%	3 Missing ⚠️
app/packages/plugins/src/index.ts	0.00%	3 Missing ⚠️
... and 3 more

Additional details and impacted files

@@                 Coverage Diff                 @@
##           release/v0.23.2    #3937      +/-   ##
===================================================
- Coverage            15.87%   15.86%   -0.01%     
===================================================
  Files                  731      731              
  Lines                81557    81697     +140     
  Branches              1093     1093              
===================================================
+ Hits                 12944    12961      +17     
- Misses               68613    68736     +123     

Flag	Coverage Δ
app	15.86% <10.46%> (-0.01%)	⬇️

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[benjaminpkane]

LGTM