Enable php-magick with SVG support

Also listed on the page in #1016 (closed)

When uploading the company logo as SVG, for example, I would have to upload a separate favicon in the current configuration.

assigned to @maarten

I've been reading through a few Nextcloud issues:

• https://github.com/nextcloud/docker/issues/1414
• https://github.com/nextcloud/server/issues/13099
• and the documentation: https://docs.nextcloud.com/server/stable/admin_manual/configuration_files/previews_configuration.html#previews-configuration

Apparently there are security issues with enabling the SVG support. It also seems they're in the process of removing that specific warning (or at least some people would like them to be). If you have a dire need for SVG support and you don't mind security issues you could use an override to either use your own Docker image, or override the entrypoint command of the container to run something like apt update && apt install -y libmagickcore-6.q16-6-extra before starting Nextcloud. But I wouldn't recommend it.

I'm closing this now, but please re-open the issue if you think I missed something.

closed

unassigned @maarten