Render opponent's name and score in CurrentGame component.
Render opponent's name and avatar in JoinRequest component.
Render the current games, or a message if there are none.
Render the pending join requests, or a message if there are none.
Add some more (testing) initial data.
Render the score too in CurrentGame.
Add a rule to build the production JavaScript, and load it when necessary.
Add an EditorConfig rule for Makefiles.
Render a (for now) static footer with React.