Fix dialog to cancel meta DEx offers
Fix dialog to cancel meta DEx offers

The action value to cancel an offer with a specific price is 2, and the action value to cancel offers with some currency pair 3. This was flipped.

When cancelling every order, then it caused a segfault, because the attempt to parse property identifier strings raised an uncaught exception.

OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore