missing svg extension for image magic

[luckow]

We had this issue last year, but it doesn't look solved.
Today I found in nextcloud.example.org/settings/admin/theming the link to https://docs.nextcloud.com/server/20/admin_manual/configuration_server/theming.html#theming-of-icons. It's a missing extension with the name libmagickcore-6.q16-3-extra With that extension in the app container, nextcloud automatically generates a favicon based on the uploaded logo. A small enhancement with no priority. Just saying

[girish]

On focal, this seems to libmagickcore-6.q16-6-extra. I have added it for the next nextcloud package update.