* Remove unnecessary null check from keywordFilter
- Replaced `keywordFilter.isNullOrEmpty()` with `keywordFilter.isEmpty()` since `keywordFilter` is guaranteed to never be null.
- Simplified the logic by removing the redundant null check, improving code readability.
* Remove unnecessary null check from keywordFilter
- Replaced `keywordFilter.isNullOrEmpty()` with `keywordFilter.isEmpty()` since `keywordFilter` is guaranteed to never be null.
- Simplified the logic by removing the redundant null check, improving code readability.