Update simple_form.ar.yml (#2908)

* Update simple_form.ar.yml

Added missing strings that were introduced to simple_form.ar.yml and completing translation.

* Create confirmation_instructions.ar.html.erb

* Create confirmation_instructions.ar.text.erb

* Create password_change.ar.html.erb

* Create password_change.ar.text.erb

* Create reset_password_instructions.ar.text.erb

* Create reset_password_instructions.ar.html.erb

app/views/user_mailer/password_change.ar.text.erb

@@ -0,0 +1,3 @@
+صباح الخير <%= @resource.email %> !
+
+نود أن نخبرك أنه قد تم تعديل كلمة مرور ماستدون الخاصة بك بنجاح.