collapse error bar by default

Summary: Since most employees use flipper in development mode, the current error bar might be overly obtrusive, so we collapse it by default

Reviewed By: priteshrnandgaonkar

Differential Revision: D18448192

fbshipit-source-id: 9aa211df6c9a519860dffdced3619119e0ee8e22

src/chrome/ErrorBar.tsx

@@ -26,7 +26,7 @@ type DispatchFromProps = {
 type Props = DispatchFromProps & StateFromProps;
 
 const ErrorBar = memo(function ErrorBar(props: Props) {
-  const [collapsed, setCollapsed] = useState(false);
+  const [collapsed, setCollapsed] = useState(true);
 
   if (!props.errors.length) {
     return null;