chore(Authenticator web): Default to lowercase form fields

[esauerbo]

Description of changes

iOS safari was defaulting to uppercase first letter for authenticator form fields. This changes the default to lowercase for text and password fields in web authenticator components.

Issue #, if available

fixes #5025

Description of how you validated changes

Checklist

• [ ] Have read the Pull Request Guidelines
• [ ] PR description included
• [ ] Relevant documentation is changed or added (and PR referenced)
• [ ] yarn test passes and tests are updated/added
• [ ] No side effects or sideEffects field updated

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[esauerbo]

LGTM, just curious why we don't need to do anything for React Native?

I thought the context for this was a problem with Safari users so I just updated the web components. But I can update RN as well if we think it would have the same issue? @calebpollman

[calebpollman]

LGTM, just curious why we don't need to do anything for React Native?

I thought the context for this was a problem with Safari users so I just updated the web components. But I can update RN as well if we think it would have the same issue? @calebpollman

MSTM. Let's just quickly verify if RN would benefit from the change before we make it