feat: remove unused images and update email functionality

- Deleted multiple unused image files from the static media directory.
- Enhanced email sending functionality by adding a new method `send_hemail` for sending HTML emails.
- Updated the `enviar_correo_bienvenida` task to use the new HTML email method.
- Added a new RGPD (General Data Protection Regulation) privacy policy page template.
- Updated URL routing to include the new RGPD page.
- Added a view function for rendering the RGPD page.

tienda/urls.py

@@ -44,5 +44,6 @@ urlpatterns = [
     path("usuario/direcciones/<int:id>/editar/", views.editar_direccion, name="editar_direccion"),
     path("usuario/direcciones/<int:id>/eliminar/", views.eliminar_direccion, name="eliminar_direccion"),
     path("usuario/mensajes/", views.mensajes_comprador, name="mensajes_comprador"),
-    path("verify/<str:code>", views.verify, name="verify")
+    path("verify/<str:code>", views.verify, name="verify"),
+    path("rgpd", views.rgpd, name="rgpd")
 ]