Avoid normalize calls in contains

[onx2]

Closes

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

🧢 Your Project:

[onx2]

Maybe also a fast path using indexOf?

Suggested change

	if (substring.length === 0 || string.length < substring.length) {
	return true;
	}
	if (substring.length === 0 || string.length < substring.length) {
	return true;
	}
	if (string.indexOf(substring) !== -1) {
	return true;
	}