Add eslint

[doowb]

Issue Template

Prerequisites

Please answer the following questions for yourself before submitting an issue.

Type of Issue

• Feature Request
• Report Bug
• Documentation Update
• Other

Context

Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.

I'd like to ensure eslint rules are checked. I have eslint installed globally so I can run eslint . myself, but it should be available in the project also.

Expected Behavior

Please describe the behavior you are expecting

I can run npm run lint or be able to use eslint in continuous integration checks.

Current Behavior

What is the current behavior?

I have to run eslint manually.

Check

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