Fix: Impossible to see pagination on viewports between small and medi…

…um. (#64844)

Co-authored-by: jorgefilipecosta <jorgefilipecosta@git.wordpress.org>
Co-authored-by: jameskoster <jameskoster@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>

packages/edit-site/src/components/page/style.scss

@@ -1,11 +1,15 @@
 .edit-site-page {
 	color: $gray-800;
 	background: $white;
-	height: 100%;
+	height: calc(100% - #{$header-height});
 	/* stylelint-disable-next-line property-no-unknown -- '@container' not globally permitted */
 	container: edit-site-page / inline-size;
 	transition: width ease-out 0.2s;
 	@include reduce-motion("transition");
+
+	@include break-medium() {
+		height: 100%;
+	}
 }
 
 .edit-site-page-header {