Folders: Signout should not switch folders to paused state. #2112

On signout, syncs that are running in folders are aborted. That used to
also switch the state of these folders to 'paused'. To fix that, aborts
that are caused by user actions no longer change the folder paused
state.

Aborts due to errors should still pause folders! Otherwise we'd try
resyncing them even though there was an error.