refactor(demo): migrate to Vite

ditch parcel v1, and replace it with Vite.
Vite is much faster and smaller, compared to parcel

Author: urish

demo/README.md

@@ -4,6 +4,6 @@ AVR8js + Monaco Editor. To run this demo:
 
 1. Install dependencies: `npm install`
 2. Start the code: `npm start`
-3. Go to http://localhost:1234/ and start tinkering
+3. Go to http://localhost:3000/ and start tinkering
 
 The demo is configured to automatically reload the app whenever you change the code.

demo/src/index.html renamed to demo/index.html

@@ -28,6 +28,6 @@ <h2>AVR8js LED Demo</h2>
       </div>
     </div>
     <script src="//cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.21.2/min/vs/loader.js"></script>
-    <script src="./index.ts"></script>
+    <script type="module" src="./src/index.ts"></script>
   </body>
 </html>

demo/vite.config.js

@@ -0,0 +1,16 @@
+import { join } from 'path';
+
+/**
+ * @type {import('vite').UserConfig}
+ */
+const config = {
+  base: '',
+  resolve: {
+    alias: { avr8js: join(__dirname, '../src') },
+  },
+  server: {
+    open: true,
+  },
+};
+
+export default config;