fix: Underlined component styling when nested in Inline Tokens

[ernst-dev]

Description

Addresses a case where components using underlines need a different spacing offset between the underline and text when nested inside Inline Tokens. In this PR a Context/Provider is added to Token and used inside Link and Popover to adjust the underline spacing when in the Token context with variant="inline"

Spacing has been reviewed by Design.

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.42%. Comparing base (5cfcc6d) to head (002321a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4278   +/-   ##
=======================================
  Coverage   97.42%   97.42%           
=======================================
  Files         891      892    +1     
  Lines       26098    26106    +8     
  Branches     9435     9437    +2     
=======================================
+ Hits        25426    25434    +8     
  Misses        629      629           
  Partials       43       43           

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[avinashbot]

No comments on the code itself, but did we run this by the team?

I could go either way on this personally. It seems like we're creating a kind of implicit API contract here... but maybe since it's just a styling thing it's nbd?