contribution fix client max body size

nginx/sites-available/5_0_prodige_contribution.conf

@@ -25,7 +25,7 @@ server {
         proxy_set_header        X-Forwarded-Server $host;
         proxy_set_header        X-Forwarded-Port   $server_port;
         proxy_set_header        X-Forwarded-Proto  $scheme;
-        client_max_body_size    10m;
+        client_max_body_size    500m;
         client_body_buffer_size 128k;
         proxy_connect_timeout   90;
         proxy_send_timeout      90;