Optionally automatically resolve conflicts based on whichever has newer timestamp

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**Is your feature request related to a problem? Please describe.**
It can be tedious to deal with conflicts. It's also unclear when changes are not being persisted to server because of a conflict. There's no indication until you go into Nextcloud app and see the error.

**Describe the solution you'd like**
I'd like an option to automatically resolve conflicts based on whichever file is newer

**Describe alternatives you've considered**
There is a feature that does this is in FolderSync

**Additional context**