fix: Wrong propTypes for SearchFieldAdvanced.icons

[bradenmacdonald]

Description

Bug: Merely using the default <SearchField /> in an MFE without setting the optional icons property results in the following console warning:

 console.error
    Warning: Failed prop type: Invalid prop `icons.submit` of type `function` supplied to `SearchFieldAdvanced`, expected a single ReactElement.
        at SearchFieldAdvanced (frontend-app-course-authoring/node_modules/@openedx/paragon/src/SearchField/SearchFieldAdvanced.jsx:18:5)
        at SearchField (frontend-app-course-authoring/node_modules/@openedx/paragon/src/SearchField/index.jsx:28:5)

From the SearchField docs, you can easily verify that the icons prop takes elementType values, not element values by trying these two:

✅ Works: pass an element type (or leave icons unspecified)

<SearchField
  onSubmit={value => console.log(`search submitted: ${value}`)}
  icons={{submit: Search}}
/>

🛑 Doesn't work: pass an actual element :

<SearchField
  onSubmit={value => console.log(`search submitted: ${value}`)}
  icons={{submit: <Search />}}
/>

I don't know why this warning isn't showing up on the docs site console. Perhaps warnings are suppressed there?

Deploy Preview

This doesn't change the implementation, just the runtime console warning.

Merge Checklist

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.18%. Comparing base (1fd134a) to head (4378e8c).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3026   +/-   ##
=======================================
  Coverage   93.18%   93.18%           
=======================================
  Files         249      249           
  Lines        4342     4342           
  Branches     1036     1036           
=======================================
  Hits         4046     4046           
  Misses        292      292           
  Partials        4        4           

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[openedx-semantic-release-bot]

:tada: This PR is included in version 22.3.2 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[bradenmacdonald]

Thanks @brian-smith-tcril !