[D&D] Add index pattern info when loading embeddable

[abbyhu2000]

Description

Since index pattern is not included in the visualization state anymore, need to add the index pattern information so the embeddable can be loaded correctly on the dashboard.

Signed-off-by: abbyhu2000 abigailhu2000@gmail.com

Issues Resolved

resolves #2362

Check List

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

[codecov-commenter]

Codecov Report

Merging #2363 (0eb7e63) into main (ab99eac) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #2363      +/-   ##
==========================================
- Coverage   66.55%   66.54%   -0.01%     
==========================================
  Files        3170     3170              
  Lines       60316    60320       +4     
  Branches     9181     9181              
==========================================
- Hits        40142    40140       -2     
- Misses      17956    17986      +30     
+ Partials     2218     2194      -24     

Impacted Files	Coverage Δ
...ns/wizard/common/wizard_saved_object_attributes.ts	100.00% <ø> (ø)
...ins/wizard/public/embeddable/wizard_embeddable.tsx	1.00% <0.00%> (-0.03%)	⬇️
...s/osd-optimizer/src/node/node_auto_tranpilation.ts	83.67% <0.00%> (-4.09%)	⬇️
packages/osd-optimizer/src/node/cache.ts	50.00% <0.00%> (-2.78%)	⬇️
packages/osd-test/src/junit_report_path.ts	62.50% <0.00%> (ø)
packages/osd-optimizer/src/run_optimizer.ts	23.52% <0.00%> (ø)
packages/osd-optimizer/src/log_optimizer_state.ts	4.54% <0.00%> (ø)
...ckages/osd-optimizer/src/report_optimizer_stats.ts	21.42% <0.00%> (ø)
...lugins/vis_type_vega/public/vega_view/vega_view.js	100.00% <0.00%> (ø)
...ns/vis_type_vega/public/vega_view/vega_map_view.js	54.34% <0.00%> (ø)
... and 3 more

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