message: fix: btc wallet balance NaN
diff: @@ -575,12 +575,20 @@ const SendBitcoinDetailsScreen = ({
  <View style={Styles.walletSelectorBalanceContainer}>
  {sendingWalletDescriptor.currency === WalletCurrency.Btc ? (
  <>
  - <Text style={Styles.walletBalanceText}>
  + <Text
  + style={Styles.walletBalanceText}
  + {...testProps("BTC Wallet Balance in USD")}
  + >
  {typeof btcBalanceInUsd === "number"
  ? formatToDisplayCurrency(btcBalanceInUsd) + " - "
  : ""}
  + </Text>
  + <Text
  + style={Styles.walletBalanceText}
  + {...testProps("BTC Wallet Balance in sats")}
  + >
  {typeof btcWalletBalance === "number"
  - ? Number(satAmountDisplay(btcWalletBalance))
  + ? satAmountDisplay(btcWalletBalance)
  : ""}
  </Text>
  </>
  