feat: changed old server ports so it can coexists with the new server

feat: removed deleted references from old server

feat: created reset and migrate mutations on gql server and
correspondent functions on new settings loader

feat: created front end for the config migration with reset and migrate
functionalities

style: add spacing between buttons
Signed-off-by: Liordino Neto <liordinoneto@gmail.com>

new-lamassu-admin/src/pages/ConfigMigration.js

@@ -0,0 +1,82 @@
+import { useMutation } from '@apollo/react-hooks'
+import { Box } from '@material-ui/core'
+import { makeStyles } from '@material-ui/core/styles'
+import gql from 'graphql-tag'
+import React, { useState } from 'react'
+
+import Title from 'src/components/Title'
+import { Button } from 'src/components/buttons'
+
+const styles = {
+  button: {
+    marginBottom: 10
+  }
+}
+const useStyles = makeStyles(styles)
+
+const RESET = gql`
+  mutation Reset($schemaVersion: Int) {
+    resetConfig(schemaVersion: $schemaVersion)
+    resetAccounts(schemaVersion: $schemaVersion)
+  }
+`
+
+const MIGRATE = gql`
+  mutation Migrate {
+    migrateConfigAndAccounts
+  }
+`
+
+const OLD_SCHEMA_VERSION = 1
+const NEW_SCHEMA_VERSION = 2
+
+const ConfigMigration = () => {
+  const [loading, setLoading] = useState(false)
+  const [reset] = useMutation(RESET, {
+    onCompleted: () => setLoading(false)
+  })
+
+  const [migrate] = useMutation(MIGRATE, {
+    onCompleted: () => setLoading(false)
+  })
+
+  const classes = useStyles()
+
+  const innerReset = schemaVersion => {
+    setLoading(true)
+    reset({ variables: { schemaVersion } })
+  }
+
+  const innerMigrate = () => {
+    setLoading(true)
+    migrate()
+  }
+
+  return (
+    <>
+      <Title>Config Migration</Title>
+      <Box display="flex" alignItems="center" flexDirection="column">
+        <Button
+          className={classes.button}
+          disabled={loading}
+          onClick={() => innerReset(OLD_SCHEMA_VERSION)}>
+          Reset old admin
+        </Button>
+        <Button
+          className={classes.button}
+          disabled={loading}
+          onClick={() => innerReset(NEW_SCHEMA_VERSION)}>
+          Reset new admin
+        </Button>
+        <Button
+          className={classes.button}
+          disabled={loading}
+          onClick={() => innerMigrate()}>
+          Migrate
+        </Button>
+      </Box>
+    </>
+  )
+}
+
+export default ConfigMigration