Add sample plugins to sidebar (#1243)

* Add sample plugins to sidebar

* Update RadarPage.test.tsx

plugins/circleci/src/components/Layout/Layout.tsx

@@ -15,20 +15,12 @@
  */
 import React from 'react';
 import { Header, Page, pageTheme, HeaderLabel } from '@backstage/core';
-import { Box } from '@material-ui/core';
 
 export const Layout: React.FC = ({ children }) => {
   return (
     <Page theme={pageTheme.tool}>
-      <Header
-        pageTitleOverride="Circle CI"
-        title={
-          <Box display="flex" alignItems="center">
-            <Box mr={1} /> Circle CI
-          </Box>
-        }
-      >
-        <HeaderLabel label="Owner" value="Team X" />
+      <Header title="CircleCI" subtitle="See recent builds and their status">
+        <HeaderLabel label="Owner" value="Spotify" />
         <HeaderLabel label="Lifecycle" value="Alpha" />
       </Header>
       {children}