Update the Content of Polyfills Page of DSA in JS

[sujitmemane]

Description

Description:
This issue is for updating the content of Polyfills Page of DSA (Data Structures and Algorithms) section in our project. Here are the specific changes needed:

1. What is on this Page ? - Section

• It should contain the list of topics covered in the video.

2. This Page should Contain Tabs - Learn and Assignment

• Create tabs for "Learn" and "Assignment" sections.

3. Learn Section should contain Video and Notes

• In the "Learn" section, add subsections for videos and notes.

4. Assignment section should contain assignments

• In the "Assignment" section, include assignments related to the topics.

5. To update the content

• Go to the Content folder of the root directory, then navigate to the batch folder, and then navigate to the DSA folder to make changes in the 'polyfills.mdx' file.

Content Check:
For reference, please check the current content in the Polyfills Content

Additional Information:
Please make sure to maintain consistency with the existing structure and style of the project. Let's enhance the DSA page to make it more user-friendly and informative.

[Abhish7k]

I would like to work on this, please assign me this issue.

[sujitmemane]

I would like to work on this, please assign me this issue.
Assigned Issue to You ; Submit PR ASAP

[Vishal-raj-1]

@Abhish7k always mention issue number in PR, so that it auto close issue. (write fixes #102) or respective issue number