Upgrade Astro and Astro Paper to v5

eslint.config.js

@@ -0,0 +1,18 @@
+import eslintPluginAstro from "eslint-plugin-astro";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+export default [
+  ...tseslint.configs.recommended,
+  ...eslintPluginAstro.configs.recommended,
+  {
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+      },
+    },
+  },
+  { rules: { "no-console": "error" } },
+  { ignores: ["dist/**", ".astro", "public/pagefind/**"] },
+];