Tutorial comments fixed(Dynamically displaying comments & replies + fixed the alignment of comments and their replies + made the user_handle visible on the comment + noted the user id of the commentor + fixed upvote and downvote)

[Aditya-Sakpal]

Description

In this pr I have fixed everything related to tutorials comments section . Following are the changes that I have made :-

1. Dynamically displaying comments and replies
2. Fixed the alignment of comments and their replies
3. Made user handle visible on the comment
4. Saved user id of the commentor in the firestore.
5. Fixed upvote and downvote functionality

Related Issue

Bugs and unimplemented functionalities in the comments section are implemented/fixed.

Motivation and Context

Bugs and too many functionalities were unimplemented

Test Results

Video Reference

Before https://github.com/c2siorg/Codelabz/assets/112710558/5598dd5f-7f8e-4423-9200-6589fb30008e

After https://github.com/c2siorg/Codelabz/assets/112710558/f49bd87a-2d21-4730-8406-85ecc4eb5062

Types of changes

• ✅ Bug fix (non-breaking change which fixes an issue)
• ✅New feature (non-breaking change which adds functionality)
• ❎ Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• ✅ My code follows the code style of this project.
• ❎ My change requires a change to the documentation.
• ✅ All new and existing tests passed.

Request to review

@Maahi10001 @ABHISHEK-PANDEY2 @Shiva-Nanda @shivareddy6 please review my pull request