refactor: organize desktop vs. mobile into separate folders

js/desktop/vite.renderer.config.mts

@@ -0,0 +1,16 @@
+import path from "path"
+import tailwindcss from "@tailwindcss/vite"
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+import { defineEnv } from './vite.env';
+
+// https://vitejs.dev/config
+export default defineConfig({
+  plugins: [react(), tailwindcss()],
+  resolve: {
+    alias: {
+      "@": path.resolve(__dirname, "./src"),
+    },
+  },
+  define: defineEnv,
+});