display 2 decimals for fee rate (up from 1)

Author: philippem

client/src/views/tx.js

@@ -140,7 +140,7 @@ const txHeader = (tx, { tipHeight, mempool, feeEst, t
     { feerate != null && <div>
       <div>{t`Transaction fees`}</div>
       <div>
-        <span className="amount">{t`${formatSat(tx.fee)} (${feerate.toFixed(1)} sat/vB)`}</span>
+        <span className="amount">{t`${formatSat(tx.fee)} (${feerate.toFixed(2)} sat/vB)`}</span>
         { overpaying > OVERPAYMENT_WARN &&
           <p className={`text-${ overpaying > OVERPAYMENT_WARN*1.5 ? 'danger' : 'warning' } mb-0`} title={t`compared to bitcoind's suggested fee of ${feeEst[2].toFixed(1)} sat/vB for confirmation within 2 blocks`}>
             ⓘ {t`overpaying by ${Math.round((overpaying-1)*100)}%`}