fix: Toast children prop type

[rpenido]

Description

This is a small fix of the typing for the children prop of the Toast component. This was generating some warnings in the frontend-app-course-authoring when the Toast was used with an Element instead of a string.

Example (from here):

<Toast show={blockFailed} onClose={hooks.nullMethod}>
  <FormattedMessage {...messages.couldNotLoadTextContext}
</Toast>

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[openedx-webhooks]

Thanks for the pull request, @rpenido!

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.27%. Comparing base (a2d1a9d) to head (f6de16c).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3232   +/-   ##
=======================================
  Coverage   93.27%   93.27%           
=======================================
  Files         249      249           
  Lines        4401     4401           
  Branches     1033     1033           
=======================================
  Hits         4105     4105           
  Misses        290      290           
  Partials        6        6           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[bradenmacdonald]

@rpenido Thanks for fixing this. Is it ready for review?

[rpenido]

Yes! It is ready now.

[rpenido]

@bradenmacdonald Fixed!

[bradenmacdonald]

@rpenido This is going to require some more input while we decide whether Toast should allow arbitrary components as children or not: https://openedx.slack.com/archives/C02NR285KV4/p1726077388682079