fix: Full width tabs flaky behavior

[geido]

SUMMARY

Reverts a style change introduced by PR #14478 that was causing a conflict with the Antd on-the-fly width calculation of the tabs.

@pkdotson I could not see any obvious issue with removing your code. Please clarify if reverting might cause specific problems anywhere.

BEFORE

COVID.Vaccine.Da.1.mp4

AFTER

COVID.Vaccine.Da.mp4

TESTING INSTRUCTIONS

1. Open a Dashboard and edit
2. Zoom out 10%
3. Make sure the tabs on the left are not showing a flaky behavior

ADDITIONAL INFORMATION

• Has associated issue: Fixes [tab]flaky behavior in tab component #14763
• 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 #14840 (3e100c7) into master (3224e75) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #14840   +/-   ##
=======================================
  Coverage   77.62%   77.62%           
=======================================
  Files         963      963           
  Lines       49236    49236           
  Branches     6192     6192           
=======================================
  Hits        38217    38217           
  Misses      10819    10819           
  Partials      200      200           

Flag	Coverage Δ
javascript	72.48% <ø> (ø)

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

Impacted Files	Coverage Δ
superset-frontend/src/components/Tabs/Tabs.tsx	96.55% <ø> (ø)

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[pkdotson]

/testenv up

[github-actions]

@pkdotson Ephemeral environment spinning up at http://34.221.70.56:8080. Credentials are admin/admin. Please allow several minutes for bootstrapping and startup.

[pkdotson]

LGTM! I pulled the branch because the ephmereal env isn't working for me and I didn't see any tab issues. Thanks for the fix!

[rusackas]

Seems to work! Thanks for fixing (as far as I can tell!)

[github-actions]

Ephemeral environment shutdown and build artifacts deleted.