fix(sql lab): most recently selected table should appear at the top of the list on the left panel

[diegomedina248]

SUMMARY

When adding a new table in the SQL Tab, it should appear at the top, since it's the most recent.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:

Screen.Recording.2022-03-18.at.12.53.02.mov

After:

Screen.Recording.2022-03-18.at.12.51.33.mov

TESTING INSTRUCTIONS

1. Go to SQL Lab
2. Select a DB
3. Select a Schema
4. Select tables

Ensure the tables are added at the top.

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 #19258 (8f6d3ee) into master (e7355b9) will increase coverage by 0.00%.
The diff coverage is 94.73%.

❗ Current head 8f6d3ee differs from pull request most recent head cf91285. Consider uploading reports for the commit cf91285 to get more accurate results

@@           Coverage Diff           @@
##           master   #19258   +/-   ##
=======================================
  Coverage   66.77%   66.78%           
=======================================
  Files        1670     1670           
  Lines       64385    64401   +16     
  Branches     6501     6501           
=======================================
+ Hits        42994    43009   +15     
- Misses      19707    19708    +1     
  Partials     1684     1684           

Flag	Coverage Δ
javascript	51.33% <100.00%> (ø)

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

Impacted Files	Coverage Δ
superset/config.py	91.82% <ø> (ø)
superset/connectors/sqla/utils.py	91.66% <90.00%> (-0.50%)	⬇️
superset-frontend/src/SqlLab/actions/sqlLab.js	60.73% <100.00%> (ø)
superset-frontend/src/SqlLab/reducers/sqlLab.js	33.15% <100.00%> (ø)
superset/connectors/sqla/models.py	90.17% <100.00%> (+0.05%)	⬆️
superset/errors.py	94.44% <100.00%> (+0.07%)	⬆️

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[rusackas]

LGTM!