Feature/add editorconfig for consistent formatting

[ignorant05]

Summary

• Solves Add .editorconfig for consistent formatting #12

Checklist

• Linked issue (or explained why not)
• Docs updated (README/CHANGELOG/inline)
• Added or updated tests
• Follows Code of Conduct

Additional Notes

• Noting to add, but feel free to mention me if i'm missing something.

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Pull request overview

This PR adds an .editorconfig file to establish consistent formatting conventions across the codebase. The configuration aligns well with the existing code style in the mixed Rust/Python project.

• Defines global formatting rules (4-space indentation, LF line endings, UTF-8, trailing whitespace trimming)
• Specifies language-specific overrides for YAML (2 spaces), TOML (2 spaces), Makefiles (tabs), and Markdown (preserve trailing whitespace)
• Ensures consistency for shell scripts with explicit LF line endings

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[aviralgarg05]

Thanks for the contribution