Add prefixing and suffixing to component/input

[mkocansey]

Will be great to have a static prefix or suffix for the Input component. Potential use cases for these are:

• when you want to users to enter phone numbers or emails for very specific country codes or domains. Examples: +233 [user-appends-the-mobile-number] [user-prepends-their-email]@bladewindui.com

• entering measures or metrics Examples: [user-digit]kg [user-digit]/mile