Create the logic for the footer navigator using React Navigator

The current footer navigator does not contain any logic to navigate to another screen. The task is to create the logic behind switching between the clock, alarm features, and settings tab.

For the settings tab, there are two settings button on the home page (A floating button and one on the navigation footer). Move the logic for navigating to the settings page from the old button to the navigation footer settings button.

You should use the react navigator library to do this. https://reactnavigation.org/docs/bottom-tab-navigator/

ufosc / Alarm-Clock

Create the logic for the footer navigator using React Navigator #25