Update Input Fields for Email Validation and Verification Process in `shadcn-ui` Example Forms

[nabarvn]

This PR introduces several updates to enhance the handling of email input fields and the email verification process within the sign-up and sign-in forms. These changes aim to improve user experience and data validation.

Modifications

1. Email Input Type:

   • Changed input type to email in the sign-up form to ensure proper email validation.

2. Email Verification:

   • Updated verification strategy fields to accurately reflect the email verification process.
   • Adjusted field names for consistency in email verification steps.

Benefits

• Enhanced user experience through more intuitive and accurate email input handling.
• Improved data validation for email fields, reducing errors and ensuring proper email formats.
• Consistency in the email verification process, making it clearer for developers.

Screenshot Reference

[!NOTE] In the component of email verification code, there is no email_code option for name attribute.

These improvements streamline the authentication process using Clerk Elements and ensure a better, more consistent experience for the developers who want to build custom UIs on top of Clerk's APIs.

[alexisintech]

Tagging in @alexcarpenter who worked on these examples. I like these updates, but want to tag him so he can have visibility on this. Awaiting your thoughts, Alex!

[nabarvn]

Tagging in @alexcarpenter who worked on these examples. I like these updates, but want to tag him so he can have visibility on this. Awaiting your thoughts, Alex!

Appreciate you, @alexisintech.

[nabarvn]

Thanks for the quick approval @alexcarpenter!