Issue 1: The tasks aren't fetched from the server

[sbmsr]

What You Need to Do

Implement the task fetching functionality from the server. Currently, the application doesn't fetch the tasks from the server. This leads to no tasks being displayed in the application.

1. Look at ./src/api/index.tsx, and implement fetchKanbanTasks
2. Call this function from the useEffect in App.tsx

Expected Behavior

The application should fetch and display all the tasks from the server when it starts. All the tasks stored on the server should be visible in the application.

Before:

After: