[FEATURE REQUEST] Delete local files after being uploaded to OC server

[diegodepablos]

This is a feature that already exists in the Android client app, that is, when automatic upload is enabled, add the possibility to delete automatically all local photos and videos that have already been uploaded to the OC server, so you don't have to free up manually all synced items.

Thanks.

[felix-schwarz]

Currently files not interacted with for 7 days are automatically removed, but I see how such a feature could be useful to immediately save space.