Fixes: 1) Enhance `raw` field in `name` with `lc` normalizer for consistent lowercase processing;
Extra: 1) Define custom `lc` normalizer in Elasticsearch settings; 2) General code formatting and minor cleanup.
Fixes: 1) Update slug population logic in management commands.
Extra: Refactor renderer class formatting, query processing, and formatting for readability across multiple files.
Simplified field definitions and improved code consistency by consolidating and aligning styles. Added `prepare_*` methods to gracefully handle None values for fields. Enhanced multilingual support and streamlined query construction for better maintainability.
