fix: explore panel missing padding

[ktmud]

SUMMARY

Fixes a regression from #10302 .

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before

After

TEST PLAN

N/A

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[codecov-commenter]

Codecov Report

Merging #10505 into master will increase coverage by 1.62%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #10505      +/-   ##
==========================================
+ Coverage   64.45%   66.07%   +1.62%     
==========================================
  Files         545      605      +60     
  Lines       30609    32425    +1816     
  Branches     2964     3423     +459     
==========================================
+ Hits        19729    21425    +1696     
- Misses      10699    10812     +113     
- Partials      181      188       +7     

Flag	Coverage Δ
#cypress	?
#javascript	59.95% <ø> (?)
#python	70.36% <ø> (-0.04%)	⬇️

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

Impacted Files	Coverage Δ
...ntend/src/explore/components/ExploreChartPanel.jsx	15.00% <ø> (-61.20%)	⬇️
superset-frontend/src/SqlLab/App.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/explore/App.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/SqlLab/index.tsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/dashboard/App.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/explore/index.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/dashboard/index.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/setup/setupColors.js	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/setup/setupPlugins.ts	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/chart/ChartContainer.jsx	0.00% <0.00%> (-100.00%)	⬇️
... and 310 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 821916a...052c04b. Read the comment docs.