feat(dashboard): remove WIP ignored users page

we're not entirely sure how to implement this yet, so putting it on the backburner for now.

Catalogger.Frontend/src/routes/dash/[guildId]/+layout.svelte

@@ -56,13 +56,6 @@
 		>
 			Ignored channels
 		</NavLink>
-		<NavLink
-			href="/dash/{data.guild.id}/ignored-users"
-			active={$page.url.pathname === `/dash/${data.guild.id}/ignored-users`}
-		>
-			Ignored users
-		</NavLink>
-
 		<NavLink
 			href="/dash/{data.guild.id}/key-roles"
 			active={$page.url.pathname === `/dash/${data.guild.id}/key-roles`}

Catalogger.Frontend/src/routes/dash/[guildId]/ignored-users/+page.svelte

@@ -1,7 +0,0 @@
-<script lang="ts">
-    // TODO
-</script>
-
-<h3>Ignored users</h3>
-
-<p>This page is still under construction!</p>