feat: Enhance Adventure and Collection Management

- Added support for multiple collections in AdventureSerializer, allowing adventures to be linked to multiple collections.
- Implemented validation to ensure collections belong to the current user during adventure creation and updates.
- Introduced a signal to update adventure publicity based on the public status of linked collections.
- Updated file permission checks to consider multiple collections when determining access rights.
- Modified AdventureImageViewSet and AttachmentViewSet to check access against collections instead of a single collection.
- Enhanced AdventureViewSet to support filtering and sorting adventures based on collections.
- Updated frontend components to manage collections more effectively, including linking and unlinking adventures from collections.
- Adjusted API endpoints and data structures to accommodate the new collections feature.
- Improved user experience with appropriate notifications for collection actions.

frontend/src/locales/en.json

@@ -523,7 +523,8 @@
 		"collection_edit_success": "Collection edited successfully!",
 		"error_editing_collection": "Error editing collection",
 		"edit_collection": "Edit Collection",
-		"public_collection": "Public Collection"
+		"public_collection": "Public Collection",
+		"manage_collections": "Manage Collections"
 	},
 	"notes": {
 		"note_deleted": "Note deleted successfully!",