Allow wrap around mouse via GUI

### MOD EDIT
This feature is a thing but you must manually edit the server config, We should allow this in the GUI configuration

### Feature Request

Mouse Without Borders has a feature that allows the mouse to move continuously off the edge of the rightmost display and end up at the edge of the leftmost display. This is especially convenient when operating on more than 2 or 3 total monitors. Is there something keeping Deskflow from having a similar feature?

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