Add Git LFS tracking for large files

[emmyiem]

Summary of Changes:

• Added Git LFS to manage large files.
• Configured .gitattributes to track large files (e.g., binaries, images, markdown files).

Why This Change is Needed:

• Prevents the repository from becoming bloated by large files, ensuring better performance.

How to Use Git LFS:

1. Install Git LFS: https://git-lfs.github.com/
2. Run git lfs install after cloning the repository.

Impact:

• Git LFS must be installed by all contributors for proper functionality.