Fix List shows empty page too often

[fzaninotto]

Problem

The default empty list page, which is an invite to create new elements, appears even when some elements already exist.

Here is a repro that can be tested in the simple example:

1. Go to the post list (in a large screen to show the datagrid version)
2. Select all rows using the top left checkbox
3. Hit the bulk delete button

The empty page shows up, even though there are remaining posts (in the following page).

Cause

This bug was introduced by #8945, which fixed a bug with partial pagination.

The condition for displaying the empty page is wrong, as it only counts the number of results in the current page (data.length) instead of the total number of results:

react-admin/packages/ra-ui-materialui/src/list/ListView.tsx

Lines 60 to 64 in e6129b2

	const shouldRenderEmptyPage =
	!isPending &&
	data?.length === 0 &&
	!Object.keys(filterValues).length &&
	empty !== false;