[Explore vis] update discover vis defaults

[ruanyl]

Description

1. update some style panel accordions default to be closed
2. change default legend position to bottom
3. default to not show axis title for time/numeric axis if not specified

Issues Resolved

Screenshot

Testing the changes

Changelog

• feat: update discover vis defaults

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 71.73913% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.25%. Comparing base (ff7ebc8) to head (cf4211a).

Files with missing lines	Patch %	Lines
...nents/visualizations/metric/metric_vis_options.tsx	40.00%	3 Missing and 3 partials ⚠️
...nts/visualizations/heatmap/heatmap_vis_options.tsx	33.33%	1 Missing and 1 partial ⚠️
...ponents/visualizations/visualization_container.tsx	50.00%	0 Missing and 2 partials ⚠️
...lic/components/visualizations/bar/to_expression.ts	50.00%	0 Missing and 1 partial ⚠️
...ponents/visualizations/gauge/gauge_vis_options.tsx	80.00%	1 Missing ⚠️
...nts/visualizations/scatter/scatter_vis_options.tsx	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10711   +/-   ##
=======================================
  Coverage   60.25%   60.25%           
=======================================
  Files        4450     4450           
  Lines      119043   119052    +9     
  Branches    19613    19625   +12     
=======================================
+ Hits        71727    71733    +6     
  Misses      42350    42350           
- Partials     4966     4969    +3     

Flag	Coverage Δ
Linux_1	26.60% <ø> (ø)
Linux_2	38.82% <ø> (ø)
Linux_3	38.79% <ø> (ø)
Linux_4	32.85% <71.73%> (+<0.01%)	⬆️
Windows_1	26.61% <ø> (ø)
Windows_2	38.80% <ø> (ø)
Windows_3	38.80% <ø> (+<0.01%)	⬆️
Windows_4	32.85% <71.73%> (+<0.01%)	⬆️

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