Browser extension improvements

[ghost]

Changes:

1. Icons wrapped with a container to simplify the process of adding new icons.
2. All 3 tile layouts on 'Latest Updates' page now work properly (only 1 worked before)
3. Icons now also appear in search results and 'Similar Threads' section
4. Changed added game icon from 'box-heart' to 'heart-square' since more square based icons can be used in the future, achieving unified style.
5. Added Prettier config and applied formatting.