Polish release notes and in-app help (#2070)

* feat(ui): improve changelog and help navigation

Make release notes easier to scan and reach from the app. Also keep the homepage marquee within the layout viewport so it cannot create horizontal scrolling.

* fix(website): reject duplicate release anchors

packages/app/src/i18n/resources/es.ts

@@ -819,16 +819,13 @@ export const es: TranslationResources = {
     },
     help: {
       trigger: "Ayuda y soporte",
-      troubleshoot: "Solucionar problemas",
+      sectionHelp: "Ayuda",
       diagnostics: "Ejecutar diagnóstico",
-      diagnosticsDescription: "Recopila datos de la app y los hosts conectados",
       shortcuts: "Atajos de teclado",
-      shortcutsDescription: "Ver los atajos de teclado disponibles",
       reportIssue: "Informar de un problema",
       discord: "Discord",
-      discordDescription: "La mejor opción para ayuda rápida y conversación",
       github: "Crear incidencia en GitHub",
-      githubDescription: "Informar de un error reproducible",
+      whatsNew: "Novedades",
       version: "Paseo {{version}}",
     },
     sections: {