Implement reviews and voting system

- Added Review model with fields for user, content type, title, content, rating, visit metadata, helpful votes, moderation status, and timestamps.
- Created ReviewHelpfulVote model to track user votes on reviews.
- Implemented moderation workflow for reviews with approve and reject methods.
- Developed admin interface for managing reviews and helpful votes, including custom display methods and actions for bulk approval/rejection.
- Added migrations for the new models and their relationships.
- Ensured unique constraints and indexes for efficient querying.

django/config/settings/base.py

@@ -70,6 +70,7 @@ INSTALLED_APPS = [
     'apps.versioning',
     'apps.media',
     'apps.notifications',
+    'apps.reviews',
 ]
 
 MIDDLEWARE = [