Update xdai and wxdai token logo (#2122)

# Summary

Fixes #1179 
Before:
![image](https://user-images.githubusercontent.com/622217/149204240-1c9f6279-d524-42e0-9269-4d60ff8a4be4.png)
After:
![image](https://user-images.githubusercontent.com/622217/149204282-281b531d-4b83-4651-8240-341e051ff770.png)


  # To Test

1. Open the page [`swap`](https://pr2122--gpswapui.review.gnosisdev.com/)
2. Connect a wallet while on xDai network
3. Pick xDai and wxDai
4. Check the token logos. Should look like the screenshot above.

src/custom/components/CurrencyLogo/CurrencyLogoMod.tsx

@@ -4,6 +4,7 @@ import { useMemo } from 'react'
 import styled from 'styled-components/macro'
 
 import EthereumLogo from 'assets/images/ethereum-logo.png'
+import xDaiLogo from 'assets/images/xdai.png'
 import useHttpLocations from 'hooks/useHttpLocations'
 import { WrappedTokenInfo } from 'state/lists/wrappedTokenInfo'
 import Logo from 'components/Logo'
@@ -85,7 +86,11 @@ export default function CurrencyLogo({
   }, [currency, uriLocations])
 
   if (currency?.isNative) {
-    return <StyledEthereumLogo src={EthereumLogo} alt="ethereum logo" size={size} style={style} {...rest} />
+    return chainIdToNetworkName(currency.chainId) === 'ethereum' ? (
+      <StyledEthereumLogo src={EthereumLogo} alt="ethereum logo" size={size} style={style} {...rest} />
+    ) : (
+      <StyledLogo srcs={[xDaiLogo]} alt="xdai logo" size={size} style={style} {...rest} />
+    )
   }
 
   return <StyledLogo size={size} srcs={srcs} alt={`${currency?.symbol ?? 'token'} logo`} style={style} {...rest} />

src/custom/constants/tokens/index.ts

@@ -3,6 +3,7 @@ import { WETH9 } from '@uniswap/sdk-core'
 import { DAI_RINKEBY, USDC_RINKEBY, USDT_RINKEBY, WBTC_RINKEBY } from 'utils/rinkeby/constants'
 import { DAI, USDC, USDT, WBTC } from 'constants/tokens'
 import { USDC_XDAI, /*USDT_XDAI,*/ WBTC_XDAI, WETH_XDAI, WXDAI } from 'utils/xdai/constants'
+import wxDaiLogo from 'assets/images/wxdai.png'
 
 export * from './tokensMod'
 
@@ -24,7 +25,6 @@ export const ADDRESS_IMAGE_OVERRIDE = {
   [USDC_XDAI.address]: getTrustImage(USDC.address),
   // [USDT_XDAI.address]: getTrustImage(USDT.address),
   [WBTC_XDAI.address]: getTrustImage(WBTC.address),
-  [WXDAI.address]:
-    'https://raw.githubusercontent.com/1Hive/default-token-list/master/src/assets/xdai/0xe91d153e0b41518a2ce8dd3d7944fa863463a97d/logo.png',
+  [WXDAI.address]: wxDaiLogo,
   [WETH_XDAI.address]: getTrustImage(WETH_ADDRESS_MAINNET),
 }