Add UI images

Add Reminders class for task reminders

The Reminders class is introduced to provide reminders for tasks scheduled for today. It includes methods to filter out tasks from a TaskList, specifically Deadline and Event tasks, based on whether they are scheduled for today. The class also provides methods to display today's deadlines and events. This commit adds the Reminders class, which enhances the functionality of the Dino task manager by enabling users to receive reminders for tasks due today.

Changes:
* Added Reminders class to provide task reminders
* Implemented methods to filter out Deadline and Event tasks for today
* Included methods to display today's deadlines and events