MWPW-142145: [Milo Plans Page] Plans page Tab behavior

[mirafedas]

• Introduced a new tab-background field in the section metadata, allowing customization of tab background color;
• Added support for the same-width block property, ensuring equal tab widths on desktop;
• Increased the content width on the plans page;

Resolves: MWPW-142145

Test URLs:
Before:

• https://main--milo--mirafedas.hlx.live/drafts/mirafedas/tabs?martech=off
• https://main--cc--adobecom.hlx.page/drafts/mirafedas/plans/plans?martech=off

After:

• https://mwpw-142145-plans-tabs--milo--mirafedas.hlx.live/drafts/mirafedas/tabs?martech=off&georouting=off
• https://main--cc--adobecom.hlx.page/drafts/mirafedas/plans/plans?milolibs=mwpw-142145-plans-tabs--milo--mirafedas&martech=off&georouting=off

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/drafts/mirafedas/tabs?martech=off&georouting=off
🖥️	/drafts/mirafedas/tabs?martech=off&georouting=off

[github-actions]

This pull request is not passing all required checks. Please see this discussion for information on how to get all checks passing. Inconsistent checks can be manually retried. If a test absolutely can not pass for a good reason, please add a comment with an explanation to the PR.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.47%. Comparing base (6cb26a3) to head (bb7ceef).

Additional details and impacted files

@@           Coverage Diff           @@
##            stage    #3420   +/-   ##
=======================================
  Coverage   96.47%   96.47%           
=======================================
  Files         260      260           
  Lines       60582    60601   +19     
=======================================
+ Hits        58444    58465   +21     
+ Misses       2138     2136    -2     

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[yesil]

Please add unit tests for the new feature you introduced to tabs.js

[yesil]

@mirafedas it seems you need to increase codecov.

[npeltier]

@mirafedas how is it that all dependencies are being updated? (cc @yesil) i guess this is what is biting you with codecov. i had same issue with my PR #3377

[mirafedas]

@npeltier thanks for noticing! These deps got changed because I ran npm run build in mas to resolve conflicts with stage, and forgot to exclude these files from my PR. I excluded them now 👍

[mirafedas]

Temporarily closing this PR to get the #3482 merged first (because of the file overlap). Will reopen