Make ahoy_email default_options[:click] an env var (#20757)

* Make ahoy_email default_options[:click] an env var

* Also noted a typo here

* Manually mount AhoyEmail::Engine

* Disable by default

---------

Co-authored-by: Mac Siri <krairit.siri@gmail.com>

app/views/layouts/mailer.html.erb

@@ -8,9 +8,8 @@
       </tr>
       <% if @user %>
         <tr>
-          <td style="padding:1% 12% 2% 4%;16px;line-height:calc(20px + 0.2vw);color:#202121">
+          <td style="padding:3% 12% 2% 4%;font-size:18px;line-height:22px;color:#202121">
             <%= signed_up_with(@user) %>
-
             <br /><br />
             <div style="font-size:0.78em">
               <% if @unsubscribe %>

config/initializers/ahoy_email.rb

@@ -1,5 +1,5 @@
 # enable tracking for open, click and UTM params
-AhoyEmail.api = true
-AhoyEmail.default_options[:click] = true
+AhoyEmail.api = false
+AhoyEmail.default_options[:click] = Rails.env.production? ? ENV["AHOY_EMAIL_CLICK_ON"] == "YES" : true
 AhoyEmail.default_options[:utm_params] = false
 AhoyEmail.default_options[:message] = true

config/routes.rb

@@ -16,6 +16,7 @@ Rails.application.routes.draw do
     get "/confirm-email", to: "confirmations#new"
     delete "/sign_out", to: "devise/sessions#destroy"
   end
+  mount AhoyEmail::Engine => "/ahoy"
 
   get "/r/mobile", to: "deep_links#mobile"
   get "/.well-known/apple-app-site-association", to: "deep_links#aasa"