fix(sqllab): Invalid schema fetch by deprecated value

[justinpark]

SUMMARY

Alternative solution of #22695 (reverted due to regression)

When a selected schema option in a old saved tab has been deprecated, it would fail to query since the selected schema is no longer existed.
This commit adds the validation logic for the current selected schema option and then reset the schema option if no longer existed.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After: Schema option changes from None -> Empty (Initial selected deprecated option without api fetch. And then reset the deprecated option)

after--invalid-schema.mov

Before:

TESTING INSTRUCTIONS

• Select a schema from the list and then close
• delete the above selected schema
• reopen the sqllab and check the error

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• 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

cc: @ktmud

[codecov]

Codecov Report

Merging #22968 (4ea555a) into master (56d4bd0) will increase coverage by 0.02%.
The diff coverage is 94.44%.

@@            Coverage Diff             @@
##           master   #22968      +/-   ##
==========================================
+ Coverage   67.41%   67.43%   +0.02%     
==========================================
  Files        1876     1878       +2     
  Lines       72088    72121      +33     
  Branches     7860     7864       +4     
==========================================
+ Hits        48596    48634      +38     
+ Misses      21478    21472       -6     
- Partials     2014     2015       +1     

Flag	Coverage Δ
javascript	53.82% <94.44%> (+0.05%)	⬆️

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

Impacted Files	Coverage Δ
...uperset-frontend/src/hooks/apiResources/schemas.ts	92.30% <92.30%> (ø)
...frontend/src/components/DatabaseSelector/index.tsx	91.66% <93.75%> (+4.90%)	⬆️
...et-frontend/src/components/TableSelector/index.tsx	79.22% <100.00%> (+1.01%)	⬆️
superset-frontend/src/hooks/apiResources/tables.ts	84.21% <100.00%> (+2.96%)	⬆️
...rc/views/CRUD/data/dataset/DatasetLayout/index.tsx	100.00% <0.00%> (ø)
...CRUD/data/dataset/AddDataset/EditDataset/index.tsx	100.00% <0.00%> (ø)
...s/CRUD/data/dataset/AddDataset/LeftPanel/index.tsx	78.57% <0.00%> (+1.19%)	⬆️
...d/src/SqlLab/components/SqlEditorLeftBar/index.tsx	54.79% <0.00%> (+1.36%)	⬆️
... and 2 more

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[ktmud]

Lgtm