Email field should prevent super long email address

Email fields in Entities currently do not prevent users from entering a really long silly email addresses.
Ideally, the field should have a syntax check so that we prevent silly inputs.

Recommending 128 characters as a max.

ref: https://en.wikipedia.org/wiki/Email_address#Syntax
ref: Amazon.ca sign-in email field accepts up to 128 characters all-in.