Feature: Api to toggle typing status on a conversation (#807)

- api to toggle typing status on a conversation
- clients receive webhook events on the same

Addresses: #718 , #719 , #775

app/models/user.rb

@@ -129,7 +129,8 @@ class User < ApplicationRecord
   def push_event_data
     {
       name: name,
-      avatar_url: avatar_url
+      avatar_url: avatar_url,
+      type: 'user'
     }
   end
 
@@ -137,7 +138,8 @@ class User < ApplicationRecord
     {
       id: id,
       name: name,
-      email: email
+      email: email,
+      type: 'user'
     }
   end
 end