fix: virtual dataset wont work

[zhaoyongjie]

SUMMARY

closes: #16124
fix that dataset modal is unable to save settings and virtual SQL.
@graceguo-supercat @yousoph @junlincc

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After

fix_virtual_dataset.mov

TESTING INSTRUCTIONS

1. create a virtual dataset
2. open explore page and use virtual dataset
3. change virtual dataset SQL, ensure that SQL is modified correctly
4. change dataset settings, ensure that settings are modified correctly

ADDITIONAL INFORMATION

• Has associated issue: [table editor] Change virtual dataset won't work #16124
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #16132 (a7aef31) into master (85ae8e3) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master   #16132   +/-   ##
=======================================
  Coverage   76.84%   76.84%           
=======================================
  Files         995      995           
  Lines       52884    52884           
  Branches     6721     6721           
=======================================
  Hits        40638    40638           
  Misses      12021    12021           
  Partials      225      225           

Flag	Coverage Δ
javascript	71.23% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...erset-frontend/src/datasource/DatasourceEditor.jsx	74.25% <100.00%> (ø)

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[graceguo-supercat]

LGTM! thanks for the quick fix!