fix(explore): fix scoll and height issues for explore container

[pkdotson]

SUMMARY

^ see description

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TEST PLAN

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

[rusackas]

THANK YOU!

LGTM.

[codecov-io]

Codecov Report

Merging #12145 (e0a7995) into master (865beae) will decrease coverage by 2.48%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #12145      +/-   ##
==========================================
- Coverage   65.82%   63.33%   -2.49%     
==========================================
  Files         988      988              
  Lines       48702    48690      -12     
  Branches     4907     4907              
==========================================
- Hits        32056    30838    -1218     
- Misses      16501    17658    +1157     
- Partials      145      194      +49     

Flag	Coverage Δ
cypress	?
javascript	61.97% <ø> (ø)
python	64.20% <ø> (ø)

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

Impacted Files	Coverage Δ
...nd/src/explore/components/ExploreViewContainer.jsx	41.46% <ø> (-28.05%)	⬇️
superset-frontend/src/explore/App.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/dashboard/App.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/setup/setupColors.js	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/chart/ChartContainer.jsx	0.00% <0.00%> (-100.00%)	⬇️
superset-frontend/src/explore/reducers/index.js	0.00% <0.00%> (-100.00%)	⬇️
...et-frontend/src/dashboard/containers/Dashboard.jsx	0.00% <0.00%> (-100.00%)	⬇️
...t-frontend/src/dashboard/containers/SliceAdder.jsx	0.00% <0.00%> (-100.00%)	⬇️
...-frontend/src/visualizations/presets/MainPreset.js	0.00% <0.00%> (-100.00%)	⬇️
...tend/src/dashboard/containers/DashboardBuilder.jsx	0.00% <0.00%> (-100.00%)	⬇️
... and 135 more

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[junlincc]

lgtm, thank you for the quick fix Friday 10pm!!!! @pkdotson

Screen.Recording.2020-12-18.at.10.29.14.PM.mov