Fixes problem with modalHolder no-drag property stopping dragging when it overlapped the app bar.
Fixes problem with modalHolder no-drag property stopping dragging when it overlapped the app bar.

OpenBazaar/OpenBazaar-Client,mariodian/OpenBazaar-Client,jjeffryes/OpenBazaar-Client,blockchainProject/blockchain-project-client,OpenBazaar/OpenBazaar-Client,blockchainProject/blockchain-project-client,jjeffryes/OpenBazaar-Client,mariodian/OpenBazaar-Client