fix deleteFolderRecursive

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/androidTest/java/com/nextcloud/test/FileDeletionTests.kt

@@ -274,7 +274,7 @@ class FileDeletionTests : AbstractIT() {
         assertNull(storageManager.getFileById(folder.fileId))
 
         // subdirectories and files are removed
-        val children = storageManager.getFolderContent(folder, false)
+        val children = storageManager.getAllFilesRecursivelyInsideFolder(folder)
         assertTrue(children.isEmpty())
 
         // local folder removed