Fix: Update .eslintrc for Stimulus to Support "static" Syntax

[htoo-eain-lwin]

Issue

The current ESLint configuration does not support the "static" syntax used in the codebase.
This leads to parsing errors and unexpected token issues when running yarn eslint, specifically with statements like static targets = ['foo', 'bar'];.

We use static in our stimulus controllers.
eg.

// hello_controller.js
import { Controller } from "stimulus"

export default class extends Controller {
  static targets = [ "name", "output" ]

  greet() {
    this.outputTarget.textContent =
      `Hello, ${this.nameTarget.value}!`
  }
}

Expected

• yarn eslint should not throw error for valid JS

import { Controller } from '@hotwired/stimulus'
export default class extends Controller {
    static targets = [ "foo" ]
}

Describe what should be the correct behaviour.

• To resolve this, we need to update the .eslintrc file with the appropriate "parserOptions" configuration.

Steps to reproduce

1. run yarn eslint on any file which use static keyword which used to define static methods

[andyduong1920]

@htoo-eain-lwin I think it would be nice if you mention we used the static for Stimulus controllers ;)