ui: remaining bits to rename canon to ui

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/app/src/index-public-experimental.tsx

@@ -30,7 +30,7 @@ import {
   discoveryApiRef,
 } from '@backstage/core-plugin-api';
 import { AuthProxyDiscoveryApi } from '../src/AuthProxyDiscoveryApi';
-import '@backstage/canon/css/styles.css';
+import '@backstage/ui/css/styles.css';
 
 const app = createApp({
   apis: [

packages/app/src/index.tsx

@@ -17,6 +17,6 @@
 import '@backstage/cli/asset-types';
 import ReactDOM from 'react-dom/client';
 import App from './App';
-import '@backstage/canon/css/styles.css';
+import '@backstage/ui/css/styles.css';
 
 ReactDOM.createRoot(document.getElementById('root')!).render(<App />);