fix(): turn off docroot templating (broken anyways)

Dockerfile

@@ -3,3 +3,4 @@ FROM richarvey/nginx-php-fpm
 COPY ./poweradmin-2.1.7 /usr/share/nginx/html
 COPY ./config.inc.php /usr/share/nginx/html/inc/config.inc.php
 
+ENV TEMPLATE_NGINX_HTML=0