The URL/IP address of the sync folder setup cannot be changed

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### Feature description
Tell us how the feature should work
I had a nextcloud server, its IP address is 1.2.3.4, and I was using it to sync files with my laptop happilly.
but someday, I move my nextcloud server to another IP address 5.6.7.8, in this condition, I had to delete all the sync fold setup and add the new IP's item one by one. For me , I got to write all the places need to be synced on paper before I delete the sync folder setup, its too much and too painful......
if the ip of the sync fold setup can be edited, it would be a lot more easier for guys like me.