fix: Translate error message

Author: bastianallgeier

i18n/translations/en.json

@@ -98,6 +98,8 @@
 	"error.content.lock.replace": "The version is locked and cannot be replaced",
 	"error.content.lock.update": "The version is locked and cannot be updated",
 
+	"error.content.unlock.invalidVersion": "Only the changes version can be unlocked",
+
 	"error.entries.max.plural": "You must not add more than {max} entries",
 	"error.entries.max.singular": "You must not add more than one entry",
 	"error.entries.min.plural": "You must add at least {min} entries",

src/Content/VersionRules.php

@@ -153,7 +153,7 @@ public static function unlock(
 
 		if ($version->id()->is('changes') === false) {
 			throw new LogicException(
-				message: 'Only the changes version can be unlocked'
+				key: 'content.unlock.invalidVersion'
 			);
 		}