Fix big grid crashing due to missing React import

by fixing the cause rather than the symptom: this upgrades the code to use the new, recommended JSX transform mode of React 17+, which no longer requires you to import React manually just to write JSX.

vite.config.js

@@ -18,14 +18,14 @@ import { defineConfig, loadEnv } from "vite";
 import svgrPlugin from "vite-plugin-svgr";
 import htmlTemplate from "vite-plugin-html-template";
 import sentryVitePlugin from "@sentry/vite-plugin";
-
-import path from "path";
+import react from "@vitejs/plugin-react";
 
 // https://vitejs.dev/config/
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd());
 
   const plugins = [
+    react(),
     svgrPlugin(),
     htmlTemplate.default({
       data: {
@@ -49,6 +49,9 @@ export default defineConfig(({ mode }) => {
   }
 
   return {
+    server: {
+      port: 3000,
+    },
     build: {
       sourcemap: true,
     },