Create Leaderboard component for gameplay page

[Ajknight121]

Create the Leaderboard component for the gameplay page that takes the full width of it's container.

Props:
Game Name, list of entries

Display game name at the top of the leaderboard component

Display each score entry as a row containing the score's rank out of total entries, the player's username with their image (placeholder image fine), and the actual score. This row entry can be a component that takes all this information as props

Display 3 buttons for time range selection: Today, this week, all time. and have a state variables that track which button and time range is being used.