2025/themes/2026/layouts/_partials/rendered-content.html

{{- $content := .Content -}}
{{- $content = replace $content `<details class="update">` `<details class="update" open>` -}}
{{- $content = replace $content `<details class='update'>` `<details class='update' open>` -}}
{{- return ($content | safeHTML) -}}