fix(carbon-react): removes default props for accessible placeholders

[abbeyhrt]

Closes #9466
(Once #9731 is merged)

Removes default props in v11 for accessible placeholder's and ensures that the props are required.

Also makes Tab's id prop required since the component has an accessibilty violation if it's not provided (reference #9666)

Changelog

Changed

• iconDescription for FileUploader is now required and default is empty
• iconDescription's and invalidText's default prop for NumberInput are now empty
• default prop for label is now empty and label and id are required

Testing / Reviewing

Verify that everything works as expected

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[joshblack]

I think for the default props we'll want the value to be undefined versus an empty string.

For dropping isRequired, is it the case that all of these are no longer required? It seemed like we would still want them but want the user to provide them versus the default props being used. Let me know if I'm misunderstanding 👀

[abbeyhrt]

For dropping isRequired, is it the case that all of these are no longer required? It seemed like we would still want them but want the user to provide them versus the default props being used. Let me know if I'm misunderstanding 👀

I think you might have it backwards! If v11 is enabled, they are required, if not, they aren't

[joshblack]

Do we auto-generate the id for the component if it doesn't exist already?