chore: upgrade svelte kit and migration work

Author: ota-meshi

docs-svelte-kit/src/routes/+layout.js

@@ -1,6 +1,8 @@
 import { markdownPath } from "$lib/utils.js"
 const docs = import.meta.glob("../../../docs/**/*.md")
 
+export const prerender = true
+
 /** @type {import('@sveltejs/kit').Load} */
 export async function load({ url }) {
   const markdown = `../../../docs/${markdownPath(url.pathname)}`

package.json

@@ -90,8 +90,8 @@
     "@fontsource/fira-mono": "^4.5.0",
     "@ota-meshi/eslint-plugin": "^0.12.0",
     "@sindresorhus/slugify": "^2.1.0",
-    "@sveltejs/adapter-static": "^1.0.0-next.26",
-    "@sveltejs/kit": "^1.0.0-next.406",
+    "@sveltejs/adapter-static": "^1.0.0-next.40",
+    "@sveltejs/kit": "^1.0.0-next.456",
     "@types/babel__core": "^7.1.19",
     "@types/cross-spawn": "^6.0.2",
     "@types/escape-html": "^1.0.2",

svelte.config.mjs

@@ -37,12 +37,9 @@ const config = {
       pages: outDir,
       assets: outDir,
     }),
-    prerender: {
-      default: true,
-    },
     files: {
       routes: path.join(dirname, "./docs-svelte-kit/src/routes"),
-      template: path.join(dirname, "./docs-svelte-kit/src/app.html"),
+      appTemplate: path.join(dirname, "./docs-svelte-kit/src/app.html"),
       hooks: path.join(dirname, "./docs-svelte-kit/src/hooks"),
       lib: path.join(dirname, "./docs-svelte-kit/src/lib"),
       assets: path.join(dirname, "./docs-svelte-kit/statics"),