[BUGFIX] Indexed search causes 404 because of missing cHash

When [FE][pageNotFoundOnCHashError] = true, searching with Indexed search
 in FE causes an 404, because the POST action is missing the cHash.

Resolves: #79970
Releases: master
Change-Id: If4f205ddfd264b1213ef696265fda0a8a6d9f29c
Reviewed-on: https://review.typo3.org/51809


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Anders Kostending <aha@systime.dk>
Tested-by: Jasmina Ließmann <code@frauliessmann.de>
Reviewed-by: Tymoteusz Motylewski <t.motylewski@gmail.com>
Tested-by: Tymoteusz Motylewski <t.motylewski@gmail.com>

typo3/sysext/indexed_search/Resources/Private/Partials/Form.html

 <div class="tx-indexedsearch-searchbox">
-<f:form action="search" method="post" id="tx_indexedsearch" noCacheHash="true" pageUid="{settings.targetPid}">
+<f:form action="search" method="post" id="tx_indexedsearch" pageUid="{settings.targetPid}">
 	<div class="tx-indexedsearch-hidden-fields">
 		<f:form.hidden name="search[_sections]" value="0" />
 		<f:form.hidden name="search[_freeIndexUid]" id="tx_indexedsearch_freeIndexUid" value="_" />