fixup! feat(conversations): add backend support of compact list

Signed-off-by: Maksim Sukharev <[email protected]>

lib/Config.php

@@ -705,7 +705,7 @@ public function getConversationsListStyle(?string $userId): int {
 		if ($userId !== null) {
 			$userSetting = $this->config->getUserValue($userId, 'spreed', UserPreference::CONVERSATIONS_COMPACT_LIST);
 			if (!empty($userSetting)) {
-				return $userSetting;
+				return (int)$userSetting;
 			}
 			return 0;
 		}