Migrate to ES6 modules

Configure project to use ES6 modules to enable top-level await
capabilities. This change helps project to align well with modern JS
standards.

- Set `type` to `module` in `package.json`.
- Use import/export syntax in Cypress configuration files.
- Rename configurations files that do not support modules to use
  the `.cjs` extension:
  - `vue.config.js` to `vue.config.cjs` (vuejs/vue-cli#4477).
  - `babel.config.js` to `babel.config.cjs (babel/babel-loader#894)
  - `.eslintrc.js` to `.eslintrc.cjs` (eslint/eslint#13440,
    eslint/eslint#14137)
  - `postcss.config.js` to `postcss.config.cjs` (postcss/postcss#1771)
- Provide a workaround for Vue CLI & Mocha ES6 modules conflict in
  Vue configuration file (vuejs/vue-cli#7417).

docs/presentation.md

@@ -25,9 +25,9 @@ The presentation layer uses an event-driven architecture for bidirectional react
   - [**`electron/`**](./../src/presentation/electron/): Electron configuration for the desktop application.
     - [**`main.ts`**](./../src/presentation/main.ts): Main process of Electron, started as first thing when app starts.
 - [**`/public/`**](./../public/): Contains static assets that are directly copied and do not go through webpack.
-- [**`/vue.config.js`**](./../vue.config.js): Global Vue CLI configurations loaded by `@vue/cli-service`.
-- [**`/postcss.config.js`**](./../postcss.config.js): PostCSS configurations used by Vue CLI internally.
-- [**`/babel.config.js`**](./../babel.config.js): Babel configurations for polyfills used by `@vue/cli-plugin-babel`.
+- [**`/vue.config.cjs`**](./../vue.config.cjs): Global Vue CLI configurations loaded by `@vue/cli-service`.
+- [**`/postcss.config.cjs`**](./../postcss.config.cjs): PostCSS configurations used by Vue CLI internally.
+- [**`/babel.config.cjs`**](./../babel.config.cjs): Babel configurations for polyfills used by `@vue/cli-plugin-babel`.
 
 ## Visual design best-practices