As a keyboard warrior, I want to navigate the news feed using arrow keys, so that I can be a speedy boi

### Description

Good afternoon digIT, I believe that many people studying alongside us (me included) despise having to use their mouse navigating their computers and websites, adding easy to use keyboard shortcuts to the website might just make it slightly more enjoyable to use. Have a nice day :sun_with_face: :kissing_heart:

### Definition of Done

- [ ] Using the left/right arrows, make the user teleport between different news stories in the feed
- [ ] In the event of a news event being collapsed while jumping to it, expand it.