fix minimum rent error and lamports conversion

app/src/components/EscrowCard.tsx

@@ -4,6 +4,7 @@ import React from 'react'
 import { YStack, XStack, Text } from 'tamagui'
 import { StatusBadge } from './StatusBadge'
 import type { EscrowAccountWithPda } from '@descro/sdk'
+import { lamportsToSolString } from '@/util/lamports'
 function truncAddr(addr: string): string {
   return `${addr.slice(0, 4)}…${addr.slice(-4)}`
 }
@@ -16,7 +17,7 @@ interface EscrowCardProps {
 
 export function EscrowCard({ item, selected, onSelect }: EscrowCardProps) {
   const { pda, account } = item
-  const solAmount = (Number(account.amount.toString()) / 1e9).toFixed(4)
+  const solAmount = lamportsToSolString(account.amount, 4)
 
   return (
     <YStack