Update nginx-default.conf (#241)

Update nginx-default.conf to enable the web ui via IPv6

.github/CODEOWNERS

@@ -0,0 +1 @@
+*       @akuker @erichelgeson

src/web/service-infra/nginx-default.conf

@@ -1,6 +1,9 @@
 # /etc/nginx/sites-available/default
 # Simple proxy_pass for RaSCSI-web
 server {
+    listen [::]:80 default_server;
+    listen 80 default_server;
+
     location / {
         proxy_pass http://127.0.0.1:8080;
     }
@@ -15,4 +18,4 @@ server {
     location = /502.html {
         root  /var/www/html/;
     }
-}
+}