Fix: Speaker Ordering on Session Pages (#1282) (#1528)

Fixes #1282

Orders speakers predictably on session pages:
- Primarily places speakers with no picture and no biography at the
bottom
- Secondarily sorts alphabetically by first name

Follows the guidelines for PRs in EuroPython/website.

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Author: iampujan

src/pages/session/[slug].astro

@@ -26,6 +26,18 @@ const { entry } = Astro.props;
 const slug = entry.id;
 const speakers = await getEntries(entry.data.speakers);
 
+// Sort speakers according to Issue #1282 rules
+speakers.sort((a, b) => {
+  const aNoPicAndBio = !a.data.avatar && !a.data.biography;
+  const bNoPicAndBio = !b.data.avatar && !b.data.biography;
+
+  if (aNoPicAndBio && !bNoPicAndBio) return 1;
+  if (!aNoPicAndBio && bNoPicAndBio) return -1;
+
+  // Otherwise, sort by first name (alphabetical)
+  return a.data.name.localeCompare(b.data.name);
+});
+
 // Resolve session codes to session data
 const resolveSessions = (codes: string[]) =>
   codes.map((code) => sessions.find((s) => s.data.code === code)!);