chore: Add .editorconfig for consistent coding styles

[Ashvin-KS]

Description

Add an .editorconfig file to maintain consistent coding styles across all editors and IDEs.

Problem Statement

Without an .editorconfig, contributors using different editors may introduce inconsistent whitespace, line endings, and indentation — leading to noisy diffs and formatting issues during code review.

Proposed Solution

Create a root .editorconfig covering:

• UTF-8 encoding with LF line endings
• 2-space indent for JavaScript, TypeScript, JSON, YAML, CSS, HTML
• 4-space indent for Python (if any)
• Trim trailing whitespace (except Markdown)
• Insert final newline
• Max line length of 120 characters

Acceptance Criteria

• .editorconfig exists at project root
• Covers all file types in the repository
• No changes to existing source files

GSSoC

• I am a registered GSSoC 2026 contributor
• I would like to implement this feature myself

[Xenon010101]

Hi, I am a GSSoC 2026 contributor and would like to work on this issue. This project matches my expertise. Please assign it to me.

/assign

[Ashvin-KS]

Hi @yashksaini-coder, following up on the .editorconfig suggestion. It would help maintain consistent formatting across contributors using different editors. Pretty quick win for the project.