Support sql direct query visualizations

[joshuali925]

Description

• Add regex as a temporary solution to parse sql
• Serialize and unserialize sql visualization in saved object
• Hide configuration panel if not using default datasource

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.00%. Comparing base (d17cad3) to head (6ff99af).
Report is 25 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1524      +/-   ##
==========================================
+ Coverage   56.62%   57.00%   +0.37%     
==========================================
  Files         348      349       +1     
  Lines       12656    12691      +35     
  Branches     3202     3210       +8     
==========================================
+ Hits         7167     7234      +67     
+ Misses       5436     5404      -32     
  Partials       53       53              

Flag	Coverage Δ
dashboards-observability	57.00% <100.00%> (+0.37%)	⬆️

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