Add Query Snippet Suggestions

[LDrago27]

Description

This PR aims at introducing Query Snippet Suggestions to the Autocomplete Service for Explore.
We would like the augment autocomplete suggestions for users based on the past queries of users stored as Saved Searches, Recent Queries and Saved Queries.

Architecture:

Flow Diagram

Issues Resolved

Screenshot

Meeting.Recording.-.Sahoo.Suchit.Instant.Meeting.30.mp4

Testing the changes

Changelog

• feat: Add Query Snippet Suggestions to Autocomplete

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 96.96970% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.29%. Comparing base (dd1f5ae) to head (55a8f6a).
⚠️ Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
...ata/public/antlr/opensearch_ppl/code_completion.ts	88.88%	0 Missing and 1 partial ⚠️
src/plugins/data/public/plugin.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10583      +/-   ##
==========================================
+ Coverage   60.19%   60.29%   +0.09%     
==========================================
  Files        4300     4387      +87     
  Lines      115053   116818    +1765     
  Branches    18680    19016     +336     
==========================================
+ Hits        69259    70432    +1173     
- Misses      41049    41544     +495     
- Partials     4745     4842      +97     

Flag	Coverage Δ
Linux_1	26.65% <19.69%> (-0.01%)	⬇️
Linux_2	38.83% <ø> (+<0.01%)	⬆️
Linux_3	38.51% <96.96%> (?)
Linux_4	32.59% <19.69%> (-0.01%)	⬇️
Windows_1	26.67% <19.69%> (-0.01%)	⬇️
Windows_2	38.80% <ø> (+<0.01%)	⬆️
Windows_3	38.52% <96.96%> (+0.69%)	⬆️
Windows_4	32.59% <19.69%> (-0.01%)	⬇️

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