misc: set default port to 8080 instead 80 for prod docker image

docker/docker-compose.yml

@@ -76,7 +76,7 @@ services:
     depends_on:
       - uxbackend
     ports:
-      - 80:80
+      - 8080:8080
     volumes:
       - backend_data:/srv/uxbox/
       # - /etc/localtime:/etc/localtime:ro

docker/release.frontend/nginx/conf.d/default.conf

@@ -1,6 +1,6 @@
 server {
-  listen 80 default_server;
-  listen [::]:80 default_server;
+  listen 8080 default_server;
+  listen [::]:8080 default_server;
 
   server_name _;