feat: add /editor/create to create a flow

packages/web/src/pages/Editor/create.tsx

@@ -0,0 +1,40 @@
+import * as React from 'react';
+import { useNavigate } from 'react-router-dom';
+import { useMutation } from '@apollo/client';
+import CircularProgress from '@mui/material/CircularProgress';
+import Typography from '@mui/material/Typography';
+
+import * as URLS from 'config/urls';
+import useFormatMessage from 'hooks/useFormatMessage';
+import { CREATE_FLOW } from 'graphql/mutations/create-flow';
+
+import Box from '@mui/material/Box';
+
+export default function CreateFlow() {
+  const navigate = useNavigate();
+  const formatMessage = useFormatMessage();
+  const [createFlow] = useMutation(CREATE_FLOW);
+
+  React.useEffect(() => {
+    async function initiate() {
+      const response = await createFlow();
+      const flowId = response.data?.createFlow?.id;
+
+      setTimeout(() => {
+        navigate(URLS.FLOW(flowId));
+      }, 1234);
+    }
+
+    initiate();
+  }, [createFlow, navigate]);
+
+  return (
+    <Box sx={{ display: 'flex', flex: 1, height: '100vh', justifyContent: 'center', alignItems: 'center', gap: 2 }}>
+      <CircularProgress size={16} thickness={7.5} />
+
+      <Typography variant="body2">
+        {formatMessage('createFlow.creating')}
+      </Typography>
+    </Box>
+  )
+}