feat: Inline multiselect tokens

[katiegeorge]

Description

This moves inline tokens in multiselect out of beta and into a public feature.

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 96.42%. Comparing base (372abbd) to head (0fa964b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3185   +/-   ##
=======================================
  Coverage   96.42%   96.42%           
=======================================
  Files         787      787           
  Lines       22191    22191           
  Branches     7555     7614   +59     
=======================================
  Hits        21398    21398           
- Misses        741      786   +45     
+ Partials       52        7   -45     

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