[Feature] DLNA legacy folders

[disconnect5852]

I have an older samsung TV which can open some legacy folders (or kindof), called "Videos" "Images" "Music" "All Content"

Add folders compatible with this.

Describe alternatives you've considered Using MiniDLNA, rclone serve dlna as these support these legacy folders. However comparing rclone serve dlna, and stash dlna server, i see that the rclone have the full structure of the shared folder as is, while stash have a virtual folder structure. I don't know why but the TV shows stash DLNA folder as empty, while in rclone dlna, every supported file is visible