Save user locale and use it to translate things

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

lib/mobilizon_web/email/admin.ex

@@ -17,7 +17,7 @@ defmodule MobilizonWeb.Email.Admin do
 
   @spec report(User.t(), Report.t(), String.t()) :: Bamboo.Email.t()
   def report(%User{email: email}, %Report{} = report, locale \\ "en") do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(

lib/mobilizon_web/email/event.ex

@@ -24,7 +24,7 @@ defmodule MobilizonWeb.Email.Event do
         changes,
         locale \\ "en"
       ) do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(

lib/mobilizon_web/email/participation.ex

@@ -46,7 +46,7 @@ defmodule MobilizonWeb.Email.Participation do
         %Participant{event: event, role: :rejected},
         locale
       ) do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(
@@ -67,7 +67,7 @@ defmodule MobilizonWeb.Email.Participation do
         %Participant{event: event, role: :participant},
         locale
       ) do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(

lib/mobilizon_web/email/user.ex

@@ -19,7 +19,7 @@ defmodule MobilizonWeb.Email.User do
         %User{email: email, confirmation_token: confirmation_token},
         locale \\ "en"
       ) do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(
@@ -39,7 +39,7 @@ defmodule MobilizonWeb.Email.User do
         %User{email: email, reset_password_token: reset_password_token},
         locale \\ "en"
       ) do
-    Gettext.put_locale(locale)
+    MobilizonWeb.Gettext.put_locale(locale)
 
     subject =
       gettext(