addign magickcore with svg support

apps/nextcloud/Dockerfile

@@ -6,7 +6,11 @@ ENV NEXTCLOUD_UPDATE=1
 RUN sed -i 's@deb.debian.org@apt-cache.lan/deb.debian.org@g' /etc/apt/sources.list && \
 	sed -i 's@security.debian.org@apt-cache.lan/security.debian.org@g' /etc/apt/sources.list && \
 	apt-get update && apt-get install -y \
-	procps bash iputils-ping
+	procps bash iputils-ping libmagickcore-6.q16-6-extra
+	
+RUN apt-get clean -y && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
 
 RUN	touch /usr/src/nextcloud/data/.ocdata
 COPY config.php /usr/src/nextcloud/config/