feature: Maintain scroll position while navigating through pages

[somashekhar161]

Title: Maintain Scroll Position When Navigating Between Pages

Description:
When browsing through courses and navigating back from inside a week's page, the user is scrolled to the top and must manually scroll back to their previous position. This makes it a tedious task to navigate between pages.

Problem:
The current implementation does not preserve the scroll position when navigating away from and back to a page, resulting in a poor user experience.

Solution:
Remember the scroll position of the page when the user navigates away, and restore it when they navigate back. This will allow users to pick up where they left off without having to manually scroll back to their previous position.

Expected Behavior:

• When a user navigates away from a page, the current scroll position is stored.
• When the user navigates back to the page, the stored scroll position is restored.

References:

• https://stackoverflow.com/questions/59100931/maintaining-state-and-scroll-position-in-react
• https://lingash.medium.com/how-to-maintain-state-and-scroll-position-in-react-4baa5dea0ce

Labels:

• usability
• navigation
• scrolling