chore: Get all notification API improvments (#8549)

Co-authored-by: Sojan Jose <sojan@chatwoot.com>

app/builders/notification_builder.rb

@@ -2,8 +2,6 @@ class NotificationBuilder
   pattr_initialize [:notification_type!, :user!, :account!, :primary_actor!, :secondary_actor]
 
   def perform
-    return unless user_subscribed_to_notification?
-
     build_notification
   end
 
@@ -16,7 +14,7 @@ class NotificationBuilder
   def user_subscribed_to_notification?
     notification_setting = user.notification_settings.find_by(account_id: account.id)
     # added for the case where an assignee might be removed from the account but remains in conversation
-    return if notification_setting.blank?
+    return false if notification_setting.blank?
 
     return true if notification_setting.public_send("email_#{notification_type}?")
     return true if notification_setting.public_send("push_#{notification_type}?")
@@ -25,6 +23,9 @@ class NotificationBuilder
   end
 
   def build_notification
+    # Create conversation_creation notification only if user is subscribed to it
+    return if notification_type == 'conversation_creation' && !user_subscribed_to_notification?
+
     user.notifications.create!(
       notification_type: notification_type,
       account: account,