Fixes lint issues & adds relevant links/examples.

In additional to switching to `messageId`, additional lint rules are
also added and followed.

Encountered when trying to use the plugin on a large code base.

Updates the minimum node version to 18 to address the EOL for security
updates of Node 16 on 2023-09-11.

Commands ran to update the `package*.json` files:

```console
npm pkg set engines.node='>=18'
npm install --package-lock-only
```

Also fixed audit issues with `npm audit fix`.

Refs: https://nodejs.dev/en/about/releases/

The forked version is maintained.

Mainly for a better DX.

Added a lot more test cases and refactored the custom rule to be based
on the core `brace-style` rule from ESLint.

Makes it easier to configure the plugin.

In addition to adding the config, lint issues were addressed.

Make sure `package.json` is used as the single source of truth for the
package's name & version.

The plugin uses `context.souceCode` which was only recently added in May
this year.

If the version of the peer dependency isn't satisfied, the plugin breaks
when the property is undefined.

Refs: https://eslint.org/blog/2023/05/eslint-v8.40.0-released/#highlights