refactor: replace custom authentication middleware with NextAuth, remove unused authentication pages, and update matcher configuration

queries/islands.ts

@@ -0,0 +1,12 @@
+"use server";
+
+export async function getIslands() {
+	const res = await fetch(`${process.env.SARLINK_API_BASE_URL}/islands/`, {
+		method: "GET",
+		headers: {
+			"Content-Type": "application/json",
+		},
+	});
+	const data = await res.json();
+	return data;
+}