Media Folder only fetches from folders previously accessed within nextcloud

Steps to reproduce

1. Add new folders of photos to nextcloud within the media directly specified on the iOS app.
2. Check yout media folder, nothing has changed
3. Acces the newly added folders on your iOS device
4. AFter the photos loaded once within the folder, they will now be visible in 'media'

Expected behaviour

The app should scour all the sub folders in the media directly in the background and populate the media folder without them having to be accessed manually.

Actual behaviour

I have to open every folder once at a time, wait for the photos to load from the serverm and then finally they are added to the media view.

Reasoning or why should it be changed/implemented?

In my case I have my photos seperated into around 300 folders. Opening them all so they appear in the media gallery is a big job.

Environment data

iOS version: e.g. iOS 15.2

**Nextcloud iOS app version: 4.2.2.7

**Server operating system: TrueNAS Core 12.0

**Nextcloud version: 23.0

Start by reproducing the issue in the Nextcloud iOS app with media stored across multiple server folders, then trace how the media folder discovers and loads subfolders. Confirm whether background fetching is involved. Done means newly added photos from all subfolders appear in the media view without each folder being opened manually.