Preload the fonts the design actually uses

The document still preloaded the Archivo file the old design used, which is now
gone: a 404 on every page load. It preloads Playfair Display and Plus Jakarta
Sans instead, and the asset test names a font that exists.

src/render/layout.ts

@@ -34,7 +34,14 @@ export function renderDocument(input: DocumentInput): Html {
     <link rel="icon" href="${logo}" />
     <link
       rel="preload"
-      href="/assets/fonts/archivo-latin.woff2"
+      href="/assets/fonts/playfair-display-latin.woff2"
+      as="font"
+      type="font/woff2"
+      crossorigin
+    />
+    <link
+      rel="preload"
+      href="/assets/fonts/plus-jakarta-sans-latin.woff2"
       as="font"
       type="font/woff2"
       crossorigin

test/routes.test.ts

@@ -283,7 +283,7 @@ describe('site furniture', () => {
     const css = await app.inject({ method: 'GET', url: '/assets/styles.css' });
     assert.equal(css.statusCode, 200);
     assert.match(css.headers['content-type'] ?? '', /text\/css/);
-    const font = await app.inject({ method: 'GET', url: '/assets/fonts/archivo-latin.woff2' });
+    const font = await app.inject({ method: 'GET', url: '/assets/fonts/playfair-display-latin.woff2' });
     assert.equal(font.statusCode, 200);
   });