refactor: move duplicates into library settings

frontend/src/lib/components/layout/nav-main.svelte

@@ -7,7 +7,7 @@
 	import { useSidebar } from '$lib/components/ui/sidebar/index.js';
 	import { getBookshelfState } from '$lib/state/bookshelf.svelte';
 	import { getLibraryState } from '$lib/state/library.svelte';
-	import { CopyCheck, House, LibraryBig, Rows3, ChevronRightIcon } from '@lucide/svelte';
+	import { House, LibraryBig, Rows3, ChevronRightIcon } from '@lucide/svelte';
 
 	const libraryState = getLibraryState();
 	const bookshelfState = getBookshelfState();
@@ -43,13 +43,6 @@
 			path: (id?: number) =>
 				resolve('/(root)/(library)/library/[libraryId]/view', { libraryId: String(id ?? '') })
 		},
-		{
-			title: 'Duplicates',
-			icon: CopyCheck,
-			routeId: '/(root)/(library)/library/[libraryId]/duplicates',
-			path: (id?: number) =>
-				resolve('/(root)/(library)/library/[libraryId]/duplicates', { libraryId: String(id ?? '') })
-		},
 		{ title: 'Shelves', icon: Rows3, routeId: null, path: () => '#', shelves: [] }
 	];
 </script>