update packages and add valign

scripts/reveal.js/react/vitest.config.ts

@@ -0,0 +1,17 @@
+import { resolve } from 'path';
+import { defineConfig } from 'vitest/config';
+import react from '@vitejs/plugin-react';
+
+export default defineConfig({
+	plugins: [react()],
+	resolve: {
+		alias: {
+			'reveal.js': resolve(__dirname, '../js/index.ts'),
+		},
+	},
+	test: {
+		environment: 'jsdom',
+		globals: true,
+		setupFiles: ['./src/__tests__/setup.ts'],
+	},
+});