[BUGFIX] Allow pageIdSelector again in non-RTE link browser

TCEMAIN.linkHandler.page.configuration.pageIdSelector.enabled = 1
This configuration is adhered again and the pageIdSelector shows up.

Resolves: #83056
Releases: master, 9.5
Change-Id: I1e03bfa180601a46c85e3c3b92ba9c7e980a4b8b
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63986
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>

typo3/sysext/backend/Classes/Controller/LinkBrowserController.php

@@ -164,4 +164,14 @@ protected function getCurrentPageId()
         }
         return (int)BackendUtility::getTSCpidCached($browserParameters['table'], $browserParameters['uid'], $pageId)[0];
     }
+
+    /**
+     * Retrieve the configuration
+     * @return array
+     */
+    public function getConfiguration(): array
+    {
+        $tsConfig = BackendUtility::getPagesTSconfig($this->getCurrentPageId());
+        return $tsConfig['TCEMAIN.']['linkHandler.']['page.']['configuration.'] ?? [];
+    }
 }

typo3/sysext/recordlist/Classes/LinkHandler/PageLinkHandler.php

@@ -283,7 +283,8 @@ public function getScriptUrl()
     public function modifyLinkAttributes(array $fieldDefinitions)
     {
         $configuration = $this->linkBrowser->getConfiguration();
-        if (!empty($configuration['pageIdSelector']['enabled'])) {
+        // Depending where the configuration is set it can be 'pageIdSelector' (CKEditor yaml) or 'pageIdSelector.' (TSconfig)
+        if (!empty($configuration['pageIdSelector']['enabled']) || !empty($configuration['pageIdSelector.']['enabled'])) {
             $this->linkAttributes[] = 'pageIdSelector';
             $fieldDefinitions['pageIdSelector'] = '
 				<form class="form-horizontal"><div class="form-group form-group-sm">