Enatega Customer Application: When new user is signing-in , sign-up input fields allowing to enter Numbers instead of Letters.

Describe the bug
The Sign-Up input fields (e.g., First Name, Last Name) are allowing numbers, which is incorrect.

To Reproduce
Steps to reproduce the behavior:

Go to 'Enatega Customer Application'.
Create a new account on customer application.
Now the new form will open.
Fill up the required fields, now put numbers in Name field.

Expected behavior

Name fields should only allow letters (A-Z, a-z) and possibly spaces.
Numbers and special characters (e.g., 123, @, #, !) should not be accepted.

Smartphone (please complete the following information):

Device: [e.g. infinix hot 50]
OS: [e.g. Android]
Browser [e.g. Application]
Version [e.g. Latest]

Start in the Enatega Customer Application sign-up form and reproduce the issue by entering numbers and special characters in the First Name and Last Name fields. Inspect how those fields currently validate input; done means names accept letters and possibly spaces while rejecting numbers and the listed special characters. No file or test is named, so locate the form entry point and add or run the relevant validation checks.

Written by the indexing model from the issue text.