Update "babel-eslint" parser to "@babel/eslint-parser"

[DataHearth]

As said on the NPM page and when installing the dependency, babel-eslint is deprecated in favour to @babel/eslint-parser. I'll be bring updates and maintenance to it and remove the warning in command line.

TO-DO:

• install @babel/eslint-parser as development dependency
• replace babel-parser by @babel/eslint-parser inside the parser field in .eslintrc.json
• replace eslint-plugin-babel by @babel/eslint-plugin development dependency
• replace babel by @babel inside plugins array in .eslintrc.json
• update all rules naming
• check everything is working as intended

CLI OUTPUT:

npm WARN deprecated babel-eslint@10.1.0: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.

Links:

• New version
• Deprecated version
• Babel blog post

[DataHearth]

I've also spotted some "issue" inside the .eslintrc.json configuration file. Here are the duplicates:

• import/no-commonjs => 2 and off
• strict => [2, "never"] and off
• import/unambiguous => 1 and off
• promise/prefer-await-to-then => 1 and off

Is there a reason why they're duplicates ? Should it be added to the issue while we're at it ^^ ?