- Updated OutputWord to use a transparent background for better theming.
- Rewrote Settings component:
  - Added props for closing the modal and resetting frequency words.
  - Implemented close button functionality.
  - Simplified UI layout with styled container.
- Refactored translation trainer hook:
  - Switched from Alert to Toast notifications.
  - Adjusted word‑matching logic for better accuracy handling.
  - Extracted file reading into a reusable async function.
  - Added `saveFrequencyJson` and `resetFrequencyJson` helpers.
  - Updated return object to expose new utilities.