Streamline error notifications

### Is your feature request related to a problem? Please describe.

Notifications about not being able to upload a file are annoying.
My nextcloud installation is only accessible on a local network or via VPN.
The auto upload feature displays error notifications for each file and if I take a dozen photos the notifications become a nuisance.
I guess it is obvious that a server with a local IP address will not be available only with a mobile connection.
The send over Wi-Fi only option does not seem to work

### Describe the solution you'd like
Error notifications should be displayed e.g. with a delay to exclude the possibility that the server is only temporarily unavailable e.g. no Wi-Fi connection.
The notification should be one general notification and the details should be in the application.

The problem notification should also include the situation when auto upload is enabled and for some reason the application lost permissions to access files.