feat: add light node upgrade top up methods (#372)

* feat: add top up

* chore: remove console.log

* build: add pseudo-missing dependency

* feat: add missing top up components

* fix: crypto route

* feat(wip): add gift wallet logic

* fix: fix gift wallet flows

* feat: simplify flow without fund step

* feat: add loading screens

* fix: remove alert

* fix: prepend http if needed

* fix: fix bug that was reintroduced with merge

* refactor: rename minusEther to minusBaseUnits

* fix: remove unused setStartedAt

* build: remove unused dependency

src/pages/top-up/CryptoTopUpIndex.tsx

@@ -0,0 +1,23 @@
+import { Typography } from '@material-ui/core'
+import { ReactElement } from 'react'
+import Index from '.'
+import { ROUTES } from '../../routes'
+
+export function CryptoTopUpIndex(): ReactElement {
+  return (
+    <Index
+      header={'Top-up with cryptocurrencies'}
+      title={'Send xDAI to the funding wallet below'}
+      p={
+        <Typography>
+          For security reasons it is recommended to send maximum 5 to 10 xDAI. To get xDAI from DAI you may use{' '}
+          <a href="https://bridge.xdaichain.com/" rel="noreferrer" target="_blank">
+            https://bridge.xdaichain.com/
+          </a>
+          .
+        </Typography>
+      }
+      next={ROUTES.TOP_UP_CRYPTO_SWAP}
+    />
+  )
+}