[Web] Minify css and js via PHP

[Web] Use PT Sans
[Web] Update some libs

data/web/inc/lib/vendor/matthiasmullie/minify/Dockerfile

@@ -0,0 +1,13 @@
+ARG version=cli
+FROM php:$version
+
+COPY . /var/www
+WORKDIR /var/www
+
+RUN apt-get update
+RUN apt-get install -y zip unzip zlib1g-dev
+RUN docker-php-ext-install zip
+RUN docker-php-ext-install pcntl
+RUN curl -sS https://getcomposer.org/installer | php
+RUN mv composer.phar /usr/local/bin/composer
+RUN composer install