Added Problem data with solution at the end, changed file type to mar…

[jaspinderkohli]

Description

This PR adds the feature to retrieve and display question data in the project.

Changes Made

• Implemented the functionality to fetch question data from the GraphQL API.
• Integrated the retrieved question data into the existing codebase.
• Displayed the question content appropriately.
• UPDATE: There's a separate file now for question data i.e question.md and solution solution.lang_extension

Reason for the Feature

The addition of problem description enhances the project by providing more comprehensive information about each solution.

Screenshots

Here's the updated code that creates a separate 'question.md' file for the question data:

Additionally, we now have individual solution files with the language as their extension:

Feel free to share any other suggestions you might have!

Please review this PR at your convenience. Your feedback and suggestions are highly appreciated.

Also, Thank you for building this awesome action.

[joshcai]

Looks great now, thank you! Apologies for the delayed review.