fix(sqllab): dedupe table_schemas in active_tab

[justinpark]

SUMMARY

Addition to #23265 fix
When SQLLAB_BACKEND_PERSISTENCE has been deactivated after activated, active_tab will be provided during localstorage persistence mode.
This causes the appending duplicated table_schemas value every time page is loaded. (This causes the increasing localStorage size)
This commit adds the dedupe logic to clean up the duplicated values.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After:

Before:

TESTING INSTRUCTIONS

set SQLLAB_BACKEND_PERSISTENCE on and open SqlLab
select one table to fetch the table schema info
disable SQLLAB_BACKEND_PERSISTENCE and open SqlLab
keep refresh the page and then check the redux value in the local storage

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

@michael-s-molina @ktmud

[codecov]

Codecov Report

Merging #23514 (bbbbef1) into master (21578f7) will increase coverage by 0.03%.
The diff coverage is 50.00%.

❗ Current head bbbbef1 differs from pull request most recent head 7bc28e6. Consider uploading reports for the commit 7bc28e6 to get more accurate results

@@            Coverage Diff             @@
##           master   #23514      +/-   ##
==========================================
+ Coverage   67.63%   67.67%   +0.03%     
==========================================
  Files        1910     1910              
  Lines       73746    73745       -1     
  Branches     7987     7987              
==========================================
+ Hits        49876    49904      +28     
+ Misses      21829    21800      -29     
  Partials     2041     2041              

Flag	Coverage Δ
javascript	53.88% <50.00%> (+0.03%)	⬆️

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Impacted Files	Coverage Δ
...t-ui-chart-controls/src/shared-controls/mixins.tsx	16.66% <ø> (ø)
...s/superset-ui-core/src/components/SafeMarkdown.tsx	66.66% <ø> (ø)
...plugins/legacy-plugin-chart-heatmap/src/Heatmap.js	0.00% <0.00%> (ø)
.../src/explore/components/ControlPanelsContainer.tsx	69.76% <0.00%> (ø)
...et-frontend/src/SqlLab/reducers/getInitialState.js	90.62% <100.00%> (+40.62%)	⬆️

... and 5 files with indirect coverage changes

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[tang350476527]

谢谢您的来信，您的邮件已收到！

[Antonio-RiveroMartnez]

LGTM!