Added a demo mode to show or hide instance warnings that data is deleted

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon_web/resolvers/config.ex

@@ -30,6 +30,7 @@ defmodule MobilizonWeb.Resolvers.Config do
      %{
        name: Config.instance_name(),
        registrations_open: Config.instance_registrations_open?(),
+       demo_mode: Config.instance_demo_mode?(),
        description: Config.instance_description(),
        location: location,
        country_code: country_code,

lib/mobilizon_web/schema/config.ex

@@ -13,6 +13,7 @@ defmodule MobilizonWeb.Schema.ConfigType do
     field(:description, :string)
 
     field(:registrations_open, :boolean)
+    field(:demo_mode, :boolean)
     field(:country_code, :string)
     field(:location, :lonlat)
     field(:geocoding, :geocoding)

lib/mobilizon_web/templates/email/email.html.eex

@@ -72,6 +72,7 @@
         </td>
     </tr>
     <%= render @view_module, @view_template, assigns %>
+    <% if Mobilizon.Config.instance_demo_mode?() do %>
     <!-- BETA WARNING -->
         <tr>
             <td bgcolor="#f4f4f4" align="center" style="padding: 30px 10px 0px 10px;">
@@ -103,6 +104,7 @@
                 <![endif]-->
             </td>
         </tr>
+    <% end %>
     <!-- SUPPORT CALLOUT -->
         <tr>
             <td bgcolor="#f4f4f4" align="center" style="padding: 30px 10px 0px 10px;">