add textArea doc prop descriptions and examples for textArea and textField

[merkoyep]

closes https://github.com/Shopify/pos-next-react-native/issues/36282

Background

• Adds descriptions for each prop in the TextArea Component docs.

• Adds code example for both TextArea and missing ones for TextField.

• Adds reference types to build-docs.sh

• Fix for un-uploaded examples

https://github.com/Shopify/ui-extensions/assets/81783308/3efb3b04-76ea-45ff-928b-e2cd3707d408

Solution

• Added descriptions through referencing original documentation.

🎩

• Visit THIS SPINSTANCE
• Compare it with the old docs
• Read through the TextArea props (and the InputAction props)
• Take note of formatting and layout.
• Anything else that is expected for component docs.

Checklist

• [x] I have :tophat:'d these changes
• [x] I have updated relevant documentation

[github-actions[bot]]

We detected some changes in packages/*/package.json or packages/*/src, and there are no updates in the .changeset directory. If the changes are user-facing and should cause a version bump, run yarn changeset to track your changes and include them in the next release CHANGELOG. If you are making simple updates to repo configuration, examples, or documentation, you do not need to add a changeset.