chore: AI Rules for React Spectrum

[reidbarber]

Rules that you can place in your project to help your coding agent (i.e. Cursor) perform better when using various React Spectrum libraries.

✅ 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:

[snowystinger]

Suggested change

	See the styling section to learn more about using the React Spectrum `style` macro.
	See the styling section below to learn more about using the React Spectrum `style` macro.

[snowystinger]

Suggested change

	React Spectrum supports styling via macros, a new bundler feature that enables functions to run at build time. Currently, Parcel v2.12.0 and newer supports macros out of the box. When using other build tools, you can install a plugin to enable them.
	React Spectrum supports styling via macros, a new bundler feature that enables functions to run at build time. Currently, Parcel v2.12.0 and newer supports macros out of the box. When using other build tools, you can install a plugin to enable them. The other build tools setup instructions are in the sections below for "Webpack, Next.js, Vite, Rollup, or ESBuild"

[snowystinger]

shoudl also include this seciton somewhere in setting up your bundler https://react-spectrum.adobe.com/s2/index.html?path=/docs/style-macro--docs#css-optimization

[snowystinger]

Suggested change

Note that the Text and Heading components are not general typography components, but instead are meant to be used WITHIN other component so default styles can be inherited (i.e. a Heading inside a Dialog or MenuItem). These components should not be used standalone. Spectrum 2 does not include specific components for typography. Instead, you can use the style macro to apply Spectrum typography to any HTML element or component.

Note that the Text and Heading components are not general typography components, but instead are meant to be used WITHIN other components so default styles can be inherited (i.e. a Heading inside a Dialog or MenuItem). These components should not be used standalone. Spectrum 2 does not include specific components for typography. Instead, you can use the style macro to apply Spectrum typography to any HTML element or component.