chore: update leaderboard data 2026-04-02 (#1146)

Author: dbazhenov

layouts/contribute/leaderboard.html

@@ -153,7 +153,7 @@
 
 /* ---- App wrapper ---- */
 .lb-app-frame {
-  max-width:960px; margin:32px auto 48px;
+  max-width:1200px; margin:32px auto 48px;
   background:#fff;
   border:1px solid #e3e8ef;
   border-radius:20px;