update packages and add valign

scripts/reveal.js/react/src/index.ts

@@ -0,0 +1,15 @@
+import { useContext } from 'react';
+import { RevealContext } from './context';
+
+export { Deck } from './Deck';
+export { Slide } from './Slide';
+export { Stack } from './Stack';
+export { Fragment } from './Fragment';
+export { Code } from './Code';
+export { RevealContext } from './context';
+
+export type { DeckProps, SlideProps, StackProps, FragmentProps, CodeProps } from './types';
+
+export function useReveal() {
+	return useContext(RevealContext);
+}