[Explore Vis] Allow to customize legend name

[lunalzm]

Description

This PR enhances visualization by allowing users to customize the legend name.

Screenshot

Single legend

Multiple legends

Changelog

• feat: Allow customizing legend name

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

❌ Patch coverage is 85.18519% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.34%. Comparing base (6d8e2ec) to head (682df42).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...nents/visualizations/style_panel/legend/legend.tsx	75.00%	0 Missing and 2 partials ⚠️
...ions/style_panel/legend/legend_options_wrapper.tsx	88.88%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10604   +/-   ##
=======================================
  Coverage   60.34%   60.34%           
=======================================
  Files        4462     4463    +1     
  Lines      119480   119475    -5     
  Branches    19746    19741    -5     
=======================================
- Hits        72095    72094    -1     
+ Misses      42382    42381    -1     
+ Partials     5003     5000    -3     

Flag	Coverage Δ
Linux_1	26.58% <ø> (ø)
Linux_2	38.82% <ø> (ø)
Linux_3	38.89% <ø> (ø)
Linux_4	33.00% <85.18%> (+<0.01%)	⬆️
Windows_1	26.60% <ø> (ø)
Windows_2	38.79% <ø> (ø)
Windows_3	38.90% <ø> (+<0.01%)	⬆️
Windows_4	33.00% <85.18%> (+<0.01%)	⬆️

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