[UI Ember web bug]The registration page of the "year of birth" column, letter values are entered.

[ecraftsman]

Precondition:

The main page is open https://brainup.site/

Steps to reproduce:

1. Click on the registration button, go to the page https://brainup.site/registration
2. Enter the letter values in the graph Actual result:

Letter values are entered, a warning (Incorrect date) appears.

Expected result:

Only numeric values are entered, the limit of values is 100 years.