Fix linting and vite config for tests

Co-authored-by: fregante <1402241+fregante@users.noreply.github.com>

Author: Copilot

demo/index.js

@@ -142,9 +142,9 @@ const urls = [
 
 const currentLocation = 'https://github.com/fregante/shorten-repo-url/issue/1';
 
-const urlInput = document.getElementById('url-input');
-const output = document.getElementById('output');
-const examplesContainer = document.getElementById('examples');
+const urlInput = document.querySelector('#url-input');
+const output = document.querySelector('#output');
+const examplesContainer = document.querySelector('#examples');
 
 function updateOutput(url) {
 	if (!url) {
@@ -154,7 +154,7 @@ function updateOutput(url) {
 	}
 
 	const shortened = shortenUrl(url, currentLocation);
-	
+
 	if (shortened) {
 		output.classList.add('has-content');
 		output.innerHTML = `
@@ -171,8 +171,8 @@ function updateOutput(url) {
 }
 
 // Handle input changes
-urlInput.addEventListener('input', (e) => {
-	updateOutput(e.target.value);
+urlInput.addEventListener('input', event => {
+	updateOutput(event.target.value);
 });
 
 // Initialize examples

package.json

@@ -33,6 +33,9 @@
 	},
 	"xo": {
 		"parser": "@typescript-eslint/parser",
+		"ignores": [
+			"demo/**"
+		],
 		"globals": [
 			"document"
 		],

vite.config.js

@@ -4,16 +4,23 @@ import {defineConfig} from 'vite';
 
 const __dirname = fileURLToPath(new URL('.', import.meta.url));
 
-export default defineConfig({
-	base: '',
-	root: resolve(__dirname, 'demo'),
-	build: {
-		outDir: resolve(__dirname, 'demo/dist'),
-		emptyOutDir: true,
-		rollupOptions: {
-			input: {
-				main: resolve(__dirname, 'demo/index.html'),
+export default defineConfig(({command}) => {
+	if (command === 'build') {
+		return {
+			base: '',
+			root: resolve(__dirname, 'demo'),
+			build: {
+				outDir: resolve(__dirname, 'demo/dist'),
+				emptyOutDir: true,
+				rollupOptions: {
+					input: {
+						main: resolve(__dirname, 'demo/index.html'),
+					},
+				},
 			},
-		},
-	},
+		};
+	}
+
+	// Default config for test/serve
+	return {};
 });