Allow user to create/add custom countdown (client side) #9
Description
When clicking on the "Add New +" button under "My Countdowns", the user will be redirected to the "Create New Countdown" overlay. From here, they will enter a title, date and time for the countdown. Clicking Save should create this new countdown, and it will be added to their "My Countdowns" list.
That countdown should then be able to be selected from the list and it will display the countdown clock in the main screen of the app.
For now, you will be creating this functionality just on the client side (ie. it will be saved locally and be lost after the session). Later on the backend team will hook up this functionality with the client's user account.