Add button to duplicate existing offers
This issue requests adding a button to duplicate existing offers so offers can be quickly created and customized.

See Bisq's code for reference, it should be the same: https://github.com/bisq-network/bisq/blob/e450c494bd68a901c4b85aa7ad45a0382b4fcf8a/desktop/src/main/java/bisq/desktop/main/portfolio/openoffer/OpenOffersView.java#L882C18-L882C47