Chore: Housekeeping tasks (#721)

- End point to return api version
- Move agent bot listener to sync dispatcher
- gem update

config/app.yml

@@ -0,0 +1,14 @@
+shared: &shared
+  version: '1.4.0'
+
+development:
+  <<: *shared
+
+production:
+  <<: *shared
+
+staging: 
+  <<: *shared
+
+test: 
+  <<: *shared

config/application.rb

@@ -30,5 +30,12 @@ module Chatwoot
     config.action_dispatch.default_headers = {
       'X-Frame-Options' => 'ALLOWALL'
     }
+
+    # Custom chatwoot configurations
+    config.x = config_for(:app).with_indifferent_access
+  end
+
+  def self.config
+    @config ||= Rails.configuration.x
   end
 end

config/routes.rb

@@ -17,6 +17,7 @@ Rails.application.routes.draw do
 
   resource :widget, only: [:show]
 
+  get '/api', to: 'api#index'
   namespace :api, defaults: { format: 'json' } do
     namespace :v1 do
       # ----------------------------------