Toggle tooltips on utxos

[cernael]

In the case where you're interested in mapping out certain utxos (in my case I'm looking at orders from an exchange, where the transactions contain utxos for several orders, and I'm typically only interested in one of them and where it leads), it would be useful to permanently show the address/amount of select utxos, instead of that info only popping up on mouseover.

[themoritz]

That's a good point. Txids are always visible, but the UTXO addresses and amounts are not. I will think a little bit about how to best update the UI in order to make this possible.