Mint Info Cleanup

[deerwhisper2310]

Is your feature request related to a problem? Please describe.

The npub field under Mint info is a bit messy. As shown in the screenshot, the npub takes up a large chunk of space and runs off the screen.

Describe the solution you'd like

First, I think just showing the first and last 6 or so characters, separated by an ellipses/colon, would help clean up the page (ex, npub1m:79mymx or npub1m...79mymx).

Additionally, adding a button to copy the full npub (or simply copying it by clicking on it) would be a nice enhancement.

Additional context

Currently on v0.4.0-beta, Android

[KKA11010]

Thank you for the report @deerwhisper2310 ! Will work on it!