resolve issue with missing vite-plugin-node-polyfills

add LibreJS licenses to all demo JS
split browser build from node build
add copyright info to license files
update to use yarn v4.13.0
update to v0.9.2

vite.config.js

@@ -6,16 +6,15 @@ import { nodePolyfills } from "vite-plugin-node-polyfills";
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 
+/* Only used for development, does not affect build */
+
 export default defineConfig({
 	plugins: [
 		dts({ exclude: ["**/__tests__/*.*"] }),
 		nodePolyfills({
-			// Specify which polyfills to include (optional, but recommended for bundle size)
-			include: ["buffer"], // Only polyfill 'buffer' (add others like 'process' if needed)
-
-			// Configure global variables (e.g., expose Buffer to window)
+			include: ["buffer"],
 			globals: {
-				Buffer: true, // Expose Buffer as a global variable (optional but useful for some cases)
+				Buffer: true,
 			},
 		}),
 	],