fix(explore): Explore data table tooltip

[Gwitchr]

SUMMARY

small style fix so that the copy tooltip is better placed.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

before

after

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #19903 (f6dba72) into master (ad1338f) will increase coverage by 0.00%.
The diff coverage is 70.83%.

❗ Current head f6dba72 differs from pull request most recent head 41c778c. Consider uploading reports for the commit 41c778c to get more accurate results

@@           Coverage Diff           @@
##           master   #19903   +/-   ##
=======================================
  Coverage   66.52%   66.52%           
=======================================
  Files        1714     1714           
  Lines       65032    65046   +14     
  Branches     6717     6722    +5     
=======================================
+ Hits        43260    43274   +14     
+ Misses      20065    20060    -5     
- Partials     1707     1712    +5     

Flag	Coverage Δ
javascript	51.25% <70.58%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
...-frontend/src/components/CopyToClipboard/index.jsx	96.00% <ø> (ø)
...d/src/explore/components/DatasourcePanel/index.tsx	69.23% <ø> (ø)
.../components/ExploreAdditionalActionsMenu/index.jsx	57.14% <ø> (ø)
superset/charts/commands/importers/v1/__init__.py	100.00% <ø> (ø)
superset/commands/importers/v1/examples.py	0.00% <ø> (ø)
...ontend/src/views/CRUD/data/dataset/DatasetList.tsx	55.31% <62.50%> (-0.32%)	⬇️
...et-ui-chart-controls/src/shared-controls/index.tsx	37.03% <66.66%> (+0.84%)	⬆️
superset/views/datasource/views.py	96.66% <71.42%> (+6.44%)	⬆️
...re/components/controls/DatasourceControl/index.jsx	72.83% <75.00%> (+0.11%)	⬆️
...set-frontend/src/components/ReportModal/styles.tsx	87.87% <100.00%> (+0.37%)	⬆️
... and 2 more

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