Configure nginx [skip ci]

Procfile

@@ -1 +1 @@
-web: vendor/bin/heroku-php-nginx public/ -C nginx_app.conf
+web: vendor/bin/heroku-php-nginx -C nginx_app.conf public/

nginx_app.conf

@@ -1,7 +1,7 @@
 location / {
-        try_files $uri $uri/ /index.php?$query_string;
-        autoindex on;
-        sendfile off;
-	}
-client_max_body_size 300M;
-index index.php index.html index.htm;
+    try_files $uri @rewriteapp;
+}
+
+location @rewriteapp {
+    rewrite ^(.*)$ /index.php$1 last;
+}