lint: Setup eslint locally

[HaecheonLee]

Description

Please include a brief summary of the change and include the relevant issue(s).

Closes #(issue)

What change does this PR introduce?

Please select the relevant option(s).

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update (changes to docs/code comments)

What is the proposed approach?

This setups eslint locally so devs are aware of what are against the eslint's rules.

Checklist:

• [x] The commit message follows our adopted guidelines
• [x] Testing has been done for the change(s) added (for bug fixes/features)
• [x] Relevant comments/docs have been added/updated (for bug fixes/features)

[HaecheonLee]

Hi,

It's reverted!

[tjtanjin]

LGTM, thanks!