basic linting

ui/frontend/build_src/vite.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig } from "vite";
+import eslint from 'vite-plugin-eslint'
 import react from "@vitejs/plugin-react";
 import { vanillaExtractPlugin } from "@vanilla-extract/vite-plugin";
 
@@ -14,6 +15,7 @@ export default defineConfig({
   },
 
   plugins: [
+    eslint(),
     react(),
     vanillaExtractPlugin({
       // configuration