Chore: Add display name to the user (#1067)

* Chore: Adding browser info to web widget triggered event

fixes: #970

* Chore: Rename nickname to display name

references: #972

* Chore: Change nickname in code

* chore: fix errors

* Chore: update nginx config

fixes: #1057

* Chore: Fix specs

docs/deployment/production/linux-vm.md

@@ -32,6 +32,7 @@ server {
   server_name yourdomain.com;
   # where rails app is running
   set $upstream 127.0.0.1:3000;
+  underscores_in_headers on;
 
   # Here we define the web-root for our SSL proof
   location /.well-known {