Textfield maxlength attribute dosen't match the database char limit

[morin0094]

I notice that the maxlength attribute of a textfield is set to 500 when the database varchar limit is set to 250.

Reproduction

Start a brand new instance of Umbraco (in my case is 8.13). Install forms. Look at the maxlength attributes in FieldType.Textfield.cshtml and compare this to the character limit in the database for this type of field.

Bug summary

Specifics

Steps to reproduce

Expected result

Both suppose to match

Actual result

The maxlength attribute is set to 500 instead of 250, making the form submission crashes when a textfield contains more then 250 caracters.