fix: Handle correctly recursive traversals when deep strategy used

Author: ghostbuster91

lua/neo-tree/sources/filesystem/lib/fs_scan.lua

@@ -190,7 +190,8 @@ local function scan_dir_sync(context, path)
       if
         grandchild_nodes == nil
         or #grandchild_nodes == 0
-        or #grandchild_nodes == 1 and grandchild_nodes[1].type == "directory"
+        or (#grandchild_nodes == 1 and grandchild_nodes[1].type == "directory")
+        or context.recursive
       then
         scan_dir_sync(context, child.path)
       end