updates from line on notification mailer

Author: Kneeba921

app/mailers/better_together/conversation_mailer.rb

@@ -16,7 +16,9 @@ def new_message_notification # rubocop:todo Metrics/MethodLength, Metrics/AbcSiz
       self.time_zone = @recipient.time_zone
 
       mail(to: @recipient.email,
-           from: "#{@sender.name} via #{@platform.name}",
+           from: t('better_together.conversation_mailer.new_message_notification.from_address',
+                   sender_name: @sender.name,
+                   from_address: default_params[:from]),
            subject: t('better_together.conversation_mailer.new_message_notification.subject',
                       platform: @platform.name,
                       conversation: @conversation.title))

app/views/better_together/conversation_mailer/new_message_notification.html.erb

@@ -14,4 +14,4 @@
 
 <p><%= link_to conversation_url(@conversation), conversation_url(@conversation) %></p>
 
-<p><%= t('.signature', platform: @platform.name) %></p>
+<p><%= t('.signature_html', platform: @platform.name) %></p>

config/locales/en.yml

@@ -627,6 +627,7 @@ en:
       add: Add Contact
     conversation_mailer:
       new_message_notification:
+        from_address: '%{sender_name} via %{from_address}'
         greeting: Hello %{recipient_name},
         message_intro: 'You have a new message in the conversation "%{conversation}":'
         signature: Signature

spec/mailers/better_together/conversation_mailer_spec.rb

@@ -17,9 +17,9 @@ module BetterTogether
       end
 
       it 'renders the headers' do
-        expect(mail.subject).to eq("[#{host_platform.name}] New message in conversation \"#{conversation.title}\"")
-        expect(mail.to).to eq([recipient.email])
-        expect(mail.from).to eq(['[email protected]'])
+        expect(mail.subject).to eq("New message in conversation \"#{conversation.title}\"")
+        expect(mail.to).to include(recipient.email)
+        expect(mail.from).to include('[email protected]')
       end
 
       it 'renders the body' do

spec/mailers/previews/better_together/conversation_mailer_preview.rb

@@ -8,7 +8,7 @@ class ConversationMailerPreview < ActionMailer::Preview
 
     # Preview this email at http://localhost:3000/rails/mailers/better_together/conversation_mailer/new_message_notification
     def new_message_notification
-      host_platform || create(:platform)
+      host_platform || create(:platform, :host)
       sender = create(:user, :confirmed)
       recipient = create(:user, :confirmed)
       conversation = create(:conversation, creator: sender.person)