chore(sqllab): Log current local storage usage

[justinpark]

SUMMARY

This commit adds a logging event for the current local storage size for monitoring purpose.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

After:

Before: N/A

TESTING INSTRUCTIONS

Go to SQLLab and check the network tab for the logging event

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

[codecov]

Codecov Report

Merging #24554 (1d9bb2e) into master (e20b695) will increase coverage by 0.02%.
The diff coverage is 81.81%.

❗ Current head 1d9bb2e differs from pull request most recent head 126583f. Consider uploading reports for the commit 126583f to get more accurate results

@@            Coverage Diff             @@
##           master   #24554      +/-   ##
==========================================
+ Coverage   69.06%   69.08%   +0.02%     
==========================================
  Files        1901     1906       +5     
  Lines       74019    74126     +107     
  Branches     8116     8156      +40     
==========================================
+ Hits        51121    51211      +90     
- Misses      20787    20795       +8     
- Partials     2111     2120       +9     

Flag	Coverage Δ
javascript	55.78% <74.07%> (+0.07%)	⬆️

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

Impacted Files	Coverage Δ
...ackages/superset-ui-chart-controls/src/fixtures.ts	100.00% <ø> (ø)
...d/packages/superset-ui-chart-controls/src/types.ts	100.00% <ø> (ø)
.../superset-ui-core/src/models/ExtensibleFunction.ts	100.00% <ø> (ø)
...ges/superset-ui-core/src/query/types/Datasource.ts	100.00% <ø> (ø)
...ackages/superset-ui-core/src/query/types/Metric.ts	100.00% <ø> (ø)
...rts/src/BigNumber/BigNumberTotal/transformProps.ts	0.00% <0.00%> (ø)
.../plugins/plugin-chart-echarts/src/BoxPlot/index.ts	50.00% <ø> (ø)
...d/plugins/plugin-chart-echarts/src/Funnel/index.ts	50.00% <ø> (ø)
...nd/plugins/plugin-chart-echarts/src/Gauge/index.ts	50.00% <ø> (ø)
...nd/plugins/plugin-chart-echarts/src/Graph/index.ts	50.00% <ø> (ø)
... and 75 more

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[michael-s-molina]

Is only the initial local storage usage monitored?

[justinpark]

That's right.