added an AddForm View and appeneded it toe DOM at runtime
force a table View re-render by setting an event listener for a change in the GameCollection
REFACTOR: moved sorting logic to the GameCollection to keep the model in sync with DOM's presentation
added an event listener to the Table View to re-render when the GameCollection sorts
setting up global event listening in the app
added routes for sorting based on the URL by triggering global events in the app