* Prep work to sync mobile search in #10424
* Added a comment about the custom search event.
* Refactor to fix already defined error caused by const and InstantClick.
* Moved <SearchFormSync /> out of the pack file.
* Fixed broken tests.
* Renamed getInitialSearchTerm utility function to getSearchTermFromUrl
* Added some API docs to getSearchTermFromUrl
* Fixed a typo.
* Added some more API docs.
* Switched to a custom event so a custom payload can be passed.
* Added some API docs.
* Fixed bad destructuring statement.
* wip for some more tests.
* Refactored getSearchTermFromUrl to use URLSearchParams
* lazy loaded state for search term initial value.
* test broken still. Need to think on it.
* filterXSS is now set up in testSetup.js
* Fixed tests.
* Added the @utilities alias to Storybooks webpack config.
* Almost 100% coverage with two useful tests.
* Added some comments explaining document.body usage in the tests.
* Fixed issue where search attemps to get results on first load.
* Small refactor for setting the window.location in tests.
* Clarified an explanation in a comment.
* Now Preact dev tools are injected into development bundles.
* Updated frontend debugging documentation.
* Updated frontend debugging documentation wording.
