fix admin login and root page height

src/routes/admin/+page.svelte

@@ -33,7 +33,7 @@
 	];
 </script>
 
-<div class="flex justify-around items-center h-full">
+<div class="flex justify-around items-center h-screen">
 	{#each tabs as tab}
 		{#if tab.enabled}
 			<div class="flex flex-col gap-4 justify-center items-center">

src/routes/admin/login/+layout.svelte

@@ -1,3 +1,3 @@
-<div class="flex justify-center items-center w-full h-full">
+<div class="flex justify-center items-center w-full h-screen">
 	<slot />
 </div>