[LN] Add a copy action to LN node pubkey

[vctt94]

Right now it is not possible to select or to copy the node pubkey. We can add a copy icon which copies it to clipboard, as it is a public and important information

[matheusd]

I think most of the data should be copyable in general, but that change to make stuff unselectable is now tricky due to the move to css modules (the selectors don't work globally anymore) so I'm not sure the best solution here.

[amass01]

We wanted to add main.css and use normal classes it should work combined with css module.

[amass01]

Also, Ilike the idea of using pi-ui component which add the nice copy icon here.

[matheusd]

closed by #2641