Update default title and description

src/env.d.ts

@@ -1 +1,9 @@
 /// <reference path="../.astro/types.d.ts" />
+interface ImportMetaEnv {
+	readonly DEFAULT_TITLE: string;
+	readonly DEFAULT_DESCRIPTION: string;
+}
+
+interface ImportMeta {
+	readonly env: ImportMetaEnv;
+}