feat: do not send contact details to the widget (#9223)

* refactor: use has_email instead of email

* feat: remove usage of details directly in forms

* test: update payload

* test: fix transcript test

* refactor: use computed hasEmail

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

spec/controllers/api/v1/widget/conversations_controller_spec.rb

@@ -190,17 +190,19 @@ RSpec.describe '/api/v1/widget/conversations/toggle_typing', type: :request do
   describe 'POST /api/v1/widget/conversations/transcript' do
     context 'with a conversation' do
       it 'sends transcript email' do
+        contact.update(email: 'test@test.com')
         mailer = double
         allow(ConversationReplyMailer).to receive(:with).and_return(mailer)
         allow(mailer).to receive(:conversation_transcript)
 
         post '/api/v1/widget/conversations/transcript',
              headers: { 'X-Auth-Token' => token },
-             params: { website_token: web_widget.website_token, email: 'test@test.com' },
+             params: { website_token: web_widget.website_token },
              as: :json
 
         expect(response).to have_http_status(:success)
         expect(mailer).to have_received(:conversation_transcript).with(conversation, 'test@test.com')
+        contact.update(email: nil)
       end
     end
   end