Disable copy to clipboard function for addresses in transaction pane

[tab00]

It's best not to make it possible to copy addresses from past transactions in order to prevent users becoming victims of address poisoning.

e.g. see Beware of address poisoning scams by Ledger which says "Never copy and paste an address from your transaction history".

[JamesSmartCell]

Hmm, ok good idea. I tend to like to be able to copy them for development purposes but I can switch that off for production.

[tab00]

I also see that the contract address is also copyable in the transaction pane, which could lead to users sending tokens into contracts where they'd get stuck forever. So that shouldn't be copyable too.

[JamesSmartCell]

right-o