add supporters in side nav

Author: Qianqianye

src/layouts/AboutLayout.astro

@@ -31,6 +31,10 @@ const pageJumpToLinks = [
     url: `${Astro.url.pathname}#contact`,
     label: t("Contact") as string,
   },
+  {
+    url: `${Astro.url.pathname}#supporters`,
+    label: t("Supporters") as string,
+  },
   {
     url: `${Astro.url.pathname}#processing-foundation`,
     label: t("Processing Foundation") as string,