Notice placement on admin Plugin page

[JoshuaHungDinh]

Description

When placing a notice on the WordPress Admin Plugins page and opting to position it below the header, the notice is correctly placed beneath the header. However, this causes the 'Add New Plugin' button to be pushed down below the notice, affecting the layout.

Steps to reproduce

• Create a notice ensuring that the notice is displayed on the admins plugins page with its location set to below_header.
• Visit the plugins page and view the notice.

Example:

AdminNotices::show($this->id, [$this, 'renderCallback'])
->custom()
->location('below_header')
->dismissible()
->enqueueStylesheet(('http://example.com')
->enqueueScript('http://example.com')
->on('plugins.php');

Visuals

Expected behavior

The notice is placed beneath both the Plugin header and the 'Add New Plugin' button. Ideally after the
<hr class="wp-header-end"> element.

System info

Arc 1.85.1
WordPress 6.7.2