HTML meta:description uses placeholder

While adding unhide search as a bookmark, I noticed that a placeholder is used as the description:

This is taken from <meta name="description" content="Description for the HKG needed"/> which is defined here: https://codebase.helmholtz.cloud/hmc/hmc-public/unhide/unhide-ui/-/blob/4c7ed3467b25e828e4ba169525259c21e7ab8e88/src/app/%5Blocale%5D/layout.tsx#L17