add imagemagick and ghotscript to render pdf previews

remove sanve stuff

move passwords into seperate env file

fix installing bcmath

add additinal installs

Update Dockerfile

using latest release candidate

update to current config from https://github.com/nextcloud/docker/blob/master/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/web/nginx.conf

using version 17

using stable tag

fix copy paste bug

add secruity fix from https://nextcloud.com/blog/urgent-security-issue-in-nginx-php-fpm/

unsing temporary tag 16-fpm, because stable-fpm is too old

Update Dockerfile

stable tag is unsupported

update nginx conf

add bugfix

fix spelling bug in label

add label vcs reference

add label

undo adding imagick

readd imagick. it shoud be installed by default from nextcloud:stable-fpm but it doesn't work yet

imagick available by default since nextcloud 14

change mariadb command

fix bug

add bzip2

add new nginx conf file

Update nginx.conf

update nginx conf https://docs.nextcloud.com/server/14/admin_manual/installation/nginx.html

add hint