feat: infobar: reflow to support small screens according to latest design spec

[dkilgore-eightfold]

SUMMARY:

Prior to this change, the optional action button did not reflow.

• Updates SASS modules to reflow at breakpoints specified
• Updates InfoBar padding to latest spec
• Adds the following props to enable greater customization of InfoBar: actionButtonClassNames, contentClassNames, contentWrapperClassNames, iconClassNames
• Updates Snackbar to implement the same reflow relative to its size.

infoBarReflow.mp4

JIRA TASK (Eightfold Employees Only):

ENG-79502

CHANGE TYPE:

• Bugfix Pull Request
• Feature Pull Request

TEST COVERAGE:

• Tests for this change already exist (Storybook)
• I have added unittests for this change

TEST PLAN:

Pull the PR branch and run yarn and yarn storybook. Verify the InfoBar and Snackbar stories behave as expected.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.37%. Comparing base (bb17b93) to head (9b0dc11).

❗ Current head 9b0dc11 differs from pull request most recent head fac8aa9. Consider uploading reports for the commit fac8aa9 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #798      +/-   ##
==========================================
- Coverage   84.38%   84.37%   -0.02%     
==========================================
  Files        1009     1009              
  Lines       19909    19896      -13     
  Branches     7546     7540       -6     
==========================================
- Hits        16800    16787      -13     
- Misses       3025     3026       +1     
+ Partials       84       83       -1     

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