style: improve code readability and structure

app/pages/+data.ts

@@ -1,9 +1,27 @@
 import type { PageContext } from "vike/types";
 
+import { useConfig } from "vike-solid/useConfig";
+import buildTitle from "./buildTitle";
+
 export type Data = Awaited<ReturnType<typeof data>>;
 
 export async function data(pageContext: PageContext) {
+	const config = useConfig();
+
+	const {
+		exports: { tableOfContents, frontmatter },
+		urlParsed,
+	} = pageContext;
+	const isRoot = urlParsed.pathname === "/";
+
+	console.log({ isRoot, urlParsed });
+
+	config({
+		title: buildTitle(isRoot ? undefined : frontmatter?.title),
+		description: frontmatter?.description,
+	});
+
 	return {
-		tableOfContents: pageContext.exports.tableOfContents,
+		tableOfContents,
 	};
 }

app/pages/+title.ts

@@ -1,5 +1,5 @@
 import config from "./+config";
 
 export function title() {
-	return `Synthèses et ressources pour développeurs - ${config.title}`;
+	return `Synthèses et ressources pour développeurs | ${config.title}`;
 }