feat: add caching for translation retrieval and improve column height calculation

- Added caching for the `getTranslation` method in `TranslationKey` model to optimize translation retrieval.
- Updated `IndexController` to improve the logic for calculating normalized heights of creations and adjusted the way columns are filled.
- Included `itsgoingd/clockwork` package dependency for enhanced debugging.
- Added `.gitignore` for Clockwork storage files.
- Minor refactoring in view templates for cleaner code.