Feat: Support for Microsoft Oauth in Email Channel (#6227)

- Adds the backend APIs required for Microsoft Email Channels

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>
Co-authored-by: Sojan <sojan@pepalo.com>

config/routes.rb

@@ -17,7 +17,9 @@ Rails.application.routes.draw do
     get '/app', to: 'dashboard#index'
     get '/app/*params', to: 'dashboard#index'
     get '/app/accounts/:account_id/settings/inboxes/new/twitter', to: 'dashboard#index', as: 'app_new_twitter_inbox'
+    get '/app/accounts/:account_id/settings/inboxes/new/microsoft', to: 'dashboard#index', as: 'app_new_microsoft_inbox'
     get '/app/accounts/:account_id/settings/inboxes/new/:inbox_id/agents', to: 'dashboard#index', as: 'app_twitter_inbox_agents'
+    get '/app/accounts/:account_id/settings/inboxes/new/:inbox_id/agents', to: 'dashboard#index', as: 'app_microsoft_inbox_agents'
 
     resource :widget, only: [:show]
     namespace :survey do
@@ -39,7 +41,6 @@ Rails.application.routes.draw do
           namespace :actions do
             resource :contact_merge, only: [:create]
           end
-
           resource :bulk_actions, only: [:create]
           resources :agents, only: [:index, :create, :update, :destroy]
           resources :agent_bots, only: [:index, :create, :show, :update, :destroy]
@@ -153,6 +154,10 @@ Rails.application.routes.draw do
             resource :authorization, only: [:create]
           end
 
+          namespace :microsoft do
+            resource :authorization, only: [:create]
+          end
+
           resources :webhooks, only: [:index, :create, :update, :destroy]
           namespace :integrations do
             resources :apps, only: [:index, :show]
@@ -339,6 +344,8 @@ Rails.application.routes.draw do
     resources :callback, only: [:create]
   end
 
+  get 'microsoft/callback', to: 'microsoft/callbacks#show'
+
   # ----------------------------------------------------------------------
   # Routes for external service verifications
   get 'apple-app-site-association' => 'apple_app#site_association'