upgrading nextjs to 15

eslint.config.mjs

@@ -0,0 +1,11 @@
+import { defineConfig } from "eslint/config";
+import nextCoreWebVitals from "eslint-config-next/core-web-vitals";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+export default defineConfig([{
+    extends: [...nextCoreWebVitals],
+}]);