[fleet][ui] Fix offset image; scrollbar flashing; missing assets in S…

…tories (#114406) (#115037)

Co-authored-by: Clint Andrew Hall <[email protected]>

packages/kbn-storybook/src/lib/run_storybook_cli.ts

@@ -36,7 +36,11 @@ export function runStorybookCli({ configDir, name }: { configDir: string; name:
     async ({ flags, log }) => {
       log.debug('Global config:\n', constants);
 
-      const staticDir = [UiSharedDepsNpm.distDir, UiSharedDepsSrc.distDir];
+      const staticDir = [
+        UiSharedDepsNpm.distDir,
+        UiSharedDepsSrc.distDir,
+        'src/plugins/kibana_react/public/assets:plugins/kibanaReact/assets',
+      ];
       const config: Record<string, any> = {
         configDir,
         mode: flags.site ? 'static' : 'dev',

x-pack/plugins/fleet/public/applications/integrations/app.tsx

@@ -37,16 +37,14 @@ import { Error, Loading, SettingFlyout } from './components';
 import type { UIExtensionsStorage } from './types';
 
 import { EPMApp } from './sections/epm';
-import { DefaultLayout, WithoutHeaderLayout } from './layouts';
+import { DefaultLayout } from './layouts';
 import { PackageInstallProvider } from './hooks';
 import { useBreadcrumbs, UIExtensionsContext } from './hooks';
 import { IntegrationsHeader } from './components/header';
 
 const ErrorLayout = ({ children }: { children: JSX.Element }) => (
   <EuiErrorBoundary>
-    <DefaultLayout>
-      <WithoutHeaderLayout>{children}</WithoutHeaderLayout>
-    </DefaultLayout>
+    <DefaultLayout>{children}</DefaultLayout>
   </EuiErrorBoundary>
 );
 

x-pack/plugins/fleet/public/applications/integrations/layouts/default.tsx

@@ -28,6 +28,8 @@ interface Props {
 
 const Illustration = styled(EuiImage)`
   margin-bottom: -68px;
+  position: relative;
+  top: -20px;
   width: 80%;
 `;