[Suggestion] Fiat Balance When Hovering Over Max Send/Receive Amounts

[athena-alpha]

In the Lightning Node (LND) app, when you hover over the balances of the Bitcoin / Lighting / Total amounts it gives you a fiat conversion.

This would be handy to also have when you hover over the "Max Send/Receive" amounts in the "Summary" component. Basically just add this:

  <div
    v-b-tooltip.hover.right
    :title="walletBalanceInSats | satsToUSD"
    v-if="walletBalance !== -1"
  >