Actually deploy the PHP configuration

docker/Dockerfile.apache

@@ -32,6 +32,7 @@ COPY . /var/www/
 
 WORKDIR /var/www/
 RUN cp -r storage storage.skel \
+ && cp /var/www/docker/php.ini /usr/local/etc/php/conf.d/pixelfed.ini \
  && composer install --prefer-source --no-interaction \
  && rm -rf html && ln -s public html