feat: add stamp dilute and topup (#619)

* feat: add stamp dilute and topup

* fix: remove any

* chore: bump bee-js

* chore: remove obsolete workaround

src/pages/gift-code/index.tsx

@@ -1,22 +1,22 @@
 import { Box, Tooltip, Typography } from '@material-ui/core'
+import { Wallet } from 'ethers'
 import { useSnackbar } from 'notistack'
 import { ReactElement, useContext, useEffect, useState } from 'react'
+import { useNavigate } from 'react-router'
 import Check from 'remixicon-react/CheckLineIcon'
 import X from 'remixicon-react/CloseLineIcon'
-import { useNavigate } from 'react-router'
-import { Wallet } from 'ethers'
 import ExpandableListItem from '../../components/ExpandableListItem'
 import ExpandableListItemActions from '../../components/ExpandableListItemActions'
 import ExpandableListItemKey from '../../components/ExpandableListItemKey'
 import { HistoryHeader } from '../../components/HistoryHeader'
 import { Loading } from '../../components/Loading'
 import { SwarmButton } from '../../components/SwarmButton'
-import { Context as BalanceProvider } from '../../providers/WalletBalance'
-import { Context as TopUpContext } from '../../providers/TopUp'
+import { Token } from '../../models/Token'
 import { Context as SettingsContext } from '../../providers/Settings'
+import { Context as TopUpContext } from '../../providers/TopUp'
+import { Context as BalanceProvider } from '../../providers/WalletBalance'
 import { createGiftWallet } from '../../utils/desktop'
 import { ResolvedWallet } from '../../utils/wallet'
-import { Token } from '../../models/Token'
 
 const GIFT_WALLET_FUND_DAI_AMOUNT = Token.fromDecimal('0.1', 18)
 const GIFT_WALLET_FUND_BZZ_AMOUNT = Token.fromDecimal('0.5', 16)
@@ -31,6 +31,9 @@ export default function Index(): ReactElement {
 
   useEffect(() => {
     async function mapGiftWallets() {
+      if (!rpcProvider) {
+        return
+      }
       const results = []
       for (const giftWallet of giftWallets) {
         results.push(await ResolvedWallet.make(giftWallet, rpcProvider))