User plays game - Basic functionality

Feature: User plays game
  In order to start playing RPS
  As a user
  I want to choose a gesture

  Scenario: User chooses rock and wins
    Given i am on the "/" page
    When i choose "Rock" and the AI chooses Scissors
    Then I should see "Congratulations, Rock beats Scissors!"

Actual game logic still needs to be implemented, also the frontend done on codepen must be integrated.