Refactored ws implementation to use it in mastodon and in new espocrm role

roles/nginx/tasks/main.yml

@@ -1,7 +1,9 @@
 ---
 - name: install nginx
   pacman:
-    name:   nginx
+    name:
+      - nginx
+      - nginx-mod-stream # Enable Stream support
     state:  present
   notify: restart nginx
   when: run_once_nginx is not defined

roles/nginx/templates/nginx.conf.j2

@@ -1,3 +1,4 @@
+load_module /usr/lib/nginx/modules/ngx_stream_module.so; # Enable Stream support
 worker_processes auto;
 
 events