Optimize images

## Squish Image Optimization Summary

Squish optimized 2 images for a total savings of 56.7 KB (10.5%).

| Image Path | Original Size | Optimized Size | Savings | Savings % |
|:--- | ---:| ---:| ---:| ---:|
| `app/assets/images/background.en-SICK.jpg` | 76 KB | 72.1 KB | 3.86 KB | 5.1% |
| `app/assets/images/background.en-DATA.jpg` | 465 KB | 412 KB | 52.8 KB | 11.4% |