message: add /btc-to-wbtc route by default in minnet
diff: @@ -113,7 +113,7 @@ class Header extends Component<any, any> {
  },
  !config.opts.exchangeDisabled && {
  title: intl.formatMessage(invest),
  - link: 'exchange/btc-to-eth',
  + link: process.env.MAINNET ? 'exchange/btc-to-wbtc': 'exchange/btc-to-eth',
  icon: 'invest',
  haveSubmenu: false,
  },
  