[TASK] Update spelling of the word webhooks

Following the commonly used spelling of the word "webhook", this change
updates the headline of the Reactions backend module.

Resolves: #99259
Releases: main
Change-Id: I73ecf994f7221a70de801a7c3e1bf6a92a23f006
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76913
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Chris Müller <typo3@krue.ml>
Reviewed-by: Chris Müller <typo3@krue.ml>

typo3/sysext/reactions/Resources/Private/Language/locallang_module_reactions.xlf

@@ -14,7 +14,7 @@
             </trans-unit>
 
             <trans-unit id="heading_text" resname="heading_text">
-                <source>Reactions — Manage Incoming HTTP Web Hooks</source>
+                <source>Reactions — Manage Incoming HTTP Webhooks</source>
             </trans-unit>
             <trans-unit id="reaction_not_found.title" resname="reaction_not_found.title">
                 <source>No reactions found!</source>