chore(explore): Change labels "Group by"/"Series" to "Dimensions"

[kgabryje]

SUMMARY

This PR changes control labels in control panel in Explore from Group by and Series to Dimensions

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

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

[zhaoyongjie]

LGTM.

[codecov]

Codecov Report

Merging #19647 (3c6d670) into master (a6bf041) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #19647      +/-   ##
==========================================
- Coverage   66.45%   66.44%   -0.02%     
==========================================
  Files        1681     1681              
  Lines       64389    64408      +19     
  Branches     6592     6593       +1     
==========================================
+ Hits        42792    42797       +5     
- Misses      19914    19927      +13     
- Partials     1683     1684       +1     

Flag	Coverage Δ
javascript	51.13% <ø> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
...chart-controls/src/shared-controls/dndControls.tsx	35.89% <ø> (ø)
...et-ui-chart-controls/src/shared-controls/index.tsx	36.19% <ø> (ø)
...gacy-preset-chart-nvd3/src/DistBar/controlPanel.ts	11.11% <ø> (ø)
...s/plugin-chart-echarts/src/BoxPlot/controlPanel.ts	100.00% <ø> (ø)
...ns/plugin-chart-echarts/src/Gauge/controlPanel.tsx	100.00% <ø> (ø)
superset-frontend/src/explore/controls.jsx	31.57% <ø> (ø)
...rontend/src/components/ListView/Filters/Search.tsx	70.58% <0.00%> (-7.99%)	⬇️
...rset-frontend/src/components/ListView/ListView.tsx	94.11% <0.00%> (-4.64%)	⬇️
...erset-frontend/src/components/EmptyState/index.tsx	71.42% <0.00%> (-2.94%)	⬇️
...frontend/src/components/ListView/Filters/index.tsx	66.66% <0.00%> (-2.57%)	⬇️
... and 8 more

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