Fixed broken timeline layout

Summary: Changelog: Fixed broken layout of timeline in QPL plugin

Reviewed By: passy

Differential Revision: D21383013

fbshipit-source-id: 95fbe2681ff27dff827c742f11192c1d07ad021c

desktop/app/src/ui/components/Layout.tsx

@@ -51,8 +51,8 @@ const Layout: React.FC<
     children: [React.ReactNode, React.ReactNode];
   } & Props
 > = ({children, ...props}) => {
-  if (children.length > 2) {
-    throw new Error('VerticalContainer expects exactly 2 children');
+  if (children.length !== 2) {
+    throw new Error('Layout expects exactly 2 children');
   }
   const top = children[0];
   const main = children[1];

desktop/app/src/ui/components/table/ManagedTable.tsx

@@ -151,6 +151,7 @@ type ManagedTableState = {
 const Container = styled(FlexColumn)<{canOverflow?: boolean}>((props) => ({
   overflow: props.canOverflow ? 'scroll' : 'visible',
   flexGrow: 1,
+  height: '100%',
 }));
 Container.displayName = 'ManagedTable:Container';