Introduce group basic federation, event new page and notifications

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

lib/web/views/email_view.ex

@@ -3,9 +3,16 @@ defmodule Mobilizon.Web.EmailView do
 
   import Mobilizon.Web.Gettext
 
-  def datetime_to_string(%DateTime{} = datetime, locale \\ "en") do
+  def datetime_to_string(%DateTime{} = datetime, locale \\ "en", format \\ :medium) do
     with {:ok, string} <-
-           Cldr.DateTime.to_string(datetime, Mobilizon.Cldr, format: :medium, locale: locale) do
+           Mobilizon.Cldr.DateTime.to_string(datetime, format: format, locale: locale) do
+      string
+    end
+  end
+
+  def datetime_to_time_string(%DateTime{} = datetime, locale \\ "en", format \\ :hm) do
+    with {:ok, string} <-
+           Mobilizon.Cldr.DateTime.to_string(datetime, format: format, locale: locale) do
       string
     end
   end