Interrapt G26

Description.
The app is supposed to accept minimum character limit of 3 and a maximum limit of 25 characters for the mentor's name. The app currently allows users to create mentors with more than 25 characters.

Steps to reproduce:
1. Login on interrapt
2. Open Mentors from the sidebar
3. Click on Create
4. In the mentor name enter name with more than 25 characters
5. Fill all the other fields
6. Click on Create

Expected result 
The mentor should not be created, message in red letters should be shown that the name is to long.

Actual result
The mentor is crated with more than 25 characters without providing the error feedback that criteria is not met, the email field is required with red letters.