Add the function of not scanning the media library like embycon

[whaleboss]

Emby next gen has the advantage at embycon that user can add multiple Emby servers at once.
But when there are too many media on the server, the waiting time for preloading will be too long and will cause a huge burden on the server.
Can you please add the function of not scanning the media library, just like embycon?
Thanks a lot.