fix: clear the last type errors

asChild is a bits-ui v1 prop the icon picker no longer needs -- it already
passes a child snippet. The drop zone set both webkitdirectory and a bare
directory attribute, which no browser implements. The library view seeds its
collection state once by design, so it says so with untrack.

frontend/src/routes/(root)/(library)/library/[libraryId]/view/+page.svelte

@@ -20,7 +20,13 @@
 		};
 	} = $props();
 
-	const { books, ...filterData } = data;
+	// Seeds the collection state once, deliberately: it owns the list from here on, and the
+	// effect below feeds it later navigations. untrack says so, rather than reading props
+	// outside a closure and being warned about capturing only the initial value.
+	const { books, filterData } = untrack(() => {
+		const { books: initialBooks, ...rest } = data;
+		return { books: initialBooks, filterData: rest };
+	});
 
 	const bookOps = getBookOperationsState();
 	const bookCollection = setBookCollectionState(bookOps, books, filterData);