fixup! feat(IUserFolder): add a user folder class

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

Author: come-nc

lib/private/Files/Node/UserFolder.php

@@ -57,8 +57,7 @@ public function getUserQuota(bool $useCache = true): array {
 		}
 
 		if ($storage->instanceOfStorage(Quota::class)) {
-			/** @var Quota $sourceStorage */
-			$quota = $sourceStorage->getQuota();
+			$quota = $storage->getQuota();
 		} elseif ($quotaIncludeExternalStorage) {
 			$quota = $this->user->getQuotaBytes();
 		}