feat: Add campaigns in web widget (#2227)

* add campaign store(getter, actions and mutations)

* add campaign store module

* add get campaigns api

* add fetch campaign action widget load

* add specs

* code cleanup

* trigger campaig api fixes

* integrate campaign trigger action

* code cleanup

* revert changes

* trigger api fixes

* review fixes

* code beautification

* chore: Fix multiple campaigns being send because of race condition

* chore: rubocop

* chore: Fix specs

* disable campaigns

Co-authored-by: Nithin David Thomas <webofnithin@gmail.com>
Co-authored-by: Sojan <sojan@pepalo.com>

app/builders/campaigns/campaign_conversation_builder.rb

@@ -5,10 +5,12 @@ class Campaigns::CampaignConversationBuilder
     @contact_inbox = ContactInbox.find(@contact_inbox_id)
     @campaign = @contact_inbox.inbox.campaigns.find_by!(display_id: campaign_display_id)
 
-    # We won't send campaigns if a conversation is already present
-    return if @contact_inbox.conversations.present?
-
     ActiveRecord::Base.transaction do
+      @contact_inbox.lock!
+
+      # We won't send campaigns if a conversation is already present
+      return if @contact_inbox.reload.conversations.present?
+
       @conversation = ::Conversation.create!(conversation_params)
       Messages::MessageBuilder.new(@campaign.sender, @conversation, message_params).perform
     end