Don't render SVG avatars in emails since mail services won't render them

https://app.fizzy.do/5986089/cards/1740

app/helpers/avatars_helper.rb

@@ -19,6 +19,16 @@ module AvatarsHelper
     end
   end
 
+  def mail_avatar_tag(user, size: 48, **options)
+    if user.avatar.attached?
+      image_tag user_avatar_url(notification.creator), alt: notification.creator.name, class: "avatar", **options
+    else
+      tag.span class: "avatar" do
+        user.initials
+      end
+    end
+  end
+
   def avatar_preview_tag(user, hidden_for_screen_reader: false, **options)
     tag.span class: class_names("avatar", options.delete(:class)),
       aria: { hidden: hidden_for_screen_reader, label: user.name },

app/views/mailers/notification/bundle_mailer/_notification.html.erb

@@ -1,6 +1,6 @@
 <table class="notification">
   <tr>
-    <td class="avatar__container"><%= image_tag user_avatar_url(notification.creator), alt: notification.creator.name, class: "avatar", size: 48 %></td>
+    <td class="avatar__container"><%= mail_avatar_tag(notification.creator) %></td>
     <td>
       <%= render "notification/bundle_mailer/header", notification: notification %>
       <%= render "notification/bundle_mailer/#{notification.source_type.underscore}/body", notification: notification %>

test/mailers/previews/notification/bundle_mailer_preview.rb

@@ -1,6 +1,5 @@
 class Notification::BundleMailerPreview < ActionMailer::Preview
   def notification
-    ApplicationRecord.current_tenant = "1065895976"
     Notification::BundleMailer.notification Notification::Bundle.take!
   end
 end