Fix code blocks in dark mode (#733)

Sam A

28.55.2022 30e9adb8321c431d843aafc6acb4491341d97dce

1
<script async defer data-domain="{{ .Site.Params.plausibleAnalytics.domain }}" src="https://{{ .Site.Params.plausibleAnalytics.serverURL | default "plausible.io" }}/js/plausible.js"></script>