Support full-width on the color picker

[alexandcote]

WHY are these changes introduced?

The color picker had a fixed width and some UI we have to build needs a slightly larger picker.

WHAT is this pull request doing?

Splitting the Picker size with width and height and adding the new fullWidth prop which tweaks some CSS.

How to 🎩

🖥 Local development instructions
🗒 General tophatting guidelines
📄 Changelog guidelines

You can 🎩 on the storybook I added a new story.

🎩 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
• For visual design changes, pinged one of @ HYPD, @ mirualves, @ sarahill, or @ ry5n to update the Polaris UI kit

[github-actions]

🟢 This pull request modifies 4 files and might impact 1 other files.

Details:

All files potentially affected (total: 1)

• /src/components/ColorPicker/ColorPicker.tsx

📄 UNRELEASED.md (total: 0)

Files potentially affected (total: 0)

🎨 src/components/ColorPicker/ColorPicker.scss (total: 1)

Files potentially affected (total: 1)

• /src/components/ColorPicker/ColorPicker.tsx

🧩 src/components/ColorPicker/ColorPicker.tsx (total: 0)

Files potentially affected (total: 0)

📄 src/components/ColorPicker/README.md (total: 0)

Files potentially affected (total: 0)

[alex-page]

Nice PR thanks for making this more flexible.

[kyledurand]

LGTM 👍 Thanks @alexandcote