Nextcloud Security & setup warning php-imagick svg support

 When running nextcloud, in the administration overview you might find the error: "Module php-imagick in this instance has no SVG support. For better compatibility it is recommended to install it."

In order to fix this warning install libmagickcore-6.q16-6-extra package with the following command:

apt-get install libmagickcore-6.q16-6-extra