Fix rendering performances issues related to scrolling events (#174)

* memoize chat related components

* Avoid re-rendering ChatInput on every message udpate

* change the way the horizontal scrollbar is hidden

* make the scroll event listener passive

* perf(Chat): fix performances issues related to autoscroll

Uses the intersection API to determine autoscroll mode instead of listening for scroll events

* tuning detection of autoscroll

components/Markdown/MemoizedReactMarkdown.tsx

@@ -0,0 +1,4 @@
+import { FC, memo } from 'react';
+import ReactMarkdown, { Options } from 'react-markdown';
+
+export const MemoizedReactMarkdown: FC<Options> = memo(ReactMarkdown);