feat: Update experimental XL breakpoint value

[aaronccasanova]

WHAT is this pull request doing?

This PR updates the xl breakpoint value to 1440px to enable equal widths for our 12 column grid:

Before:
((1400 - (32*2)) - (11 * 16)) / 12
96.67px each column

After:
((1440 - (32*2)) - (11 * 16)) / 12
100px each column

How to 🎩

🖥 Local development instructions
🗒 General tophatting guidelines
📄 Changelog guidelines

Copy-paste this code in playground/Playground.tsx:

import React from 'react';
import {Page} from '../src';

export function Playground() {
  return (
    <Page title="Playground">
      {/* Add the code you want to test in here */}
    </Page>
  );
}

🎩 checklist

• Tested on mobile
• Tested on multiple browsers
• Tested for accessibility
• Updated the component's README.md with documentation changes
• Tophatted documentation changes in the style guide

[changeset-bot]

⚠️ No Changeset found

Latest commit: a3ddac7

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

size-limit report 📦

Path	Size
cjs	150.78 KB (-0.01% 🔽)
esm	86.91 KB (-0.01% 🔽)
esnext	136.79 KB (-0.01% 🔽)
css	37.23 KB (+0.01% 🔺)