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.

proyecto/settings.py

@@ -111,6 +111,14 @@ TEMPLATES = [
             ],
         },
     },
+    {
+        'BACKEND': 'django.template.backends.jinja2.Jinja2',
+        'DIRS': [BASE_DIR / 'templates/jinja2'],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'environment': 'proyecto.jinja2.environment',
+        },
+    }
 ]
 
 WSGI_APPLICATION = 'proyecto.wsgi.application'