fix(glossaire): include standalone relation headings in reading follow

src/layouts/EditionLayout.astro

@@ -1500,6 +1500,7 @@ const WHOAMI_FORCE_LOCALHOST = (import.meta.env.PUBLIC_WHOAMI_FORCE_LOCALHOST ??
       .filter(Boolean);
 
     const h2Plain = Array.from(reading.querySelectorAll("h2[id]"))
+      .filter((h2) => !h2.closest("details.details-section"))
       .map((h2) => ({
         id: h2.id,
         anchor: h2,
@@ -1508,7 +1509,7 @@ const WHOAMI_FORCE_LOCALHOST = (import.meta.env.PUBLIC_WHOAMI_FORCE_LOCALHOST ??
         h2,
       }));
 
-    const H2 = (h2Anchors.length ? h2Anchors : h2Plain)
+    const H2 = [...h2Anchors, ...h2Plain]
       .slice()
       .sort((a, b) => absTop(a.marker) - absTop(b.marker));