JetBrains: Basic search results list

Created by: philipp-spiess

In the current prototype, this is just a plain list that often crashes. For next iteration we want to:

• Have basic styling that resembles the rough layout of our first design sketches
• Allows basic keyboard navigations (arrow up/down)
• Efficiently handles larger amounts of data (pagination?)
• Doesn't break if the search result is of type repo.