Create an account page doesn't accept to enter multiples names with uppercase

[samuelroland]

Describe the bug
The names can't be Josette-Blan or John Adam for ex. Uppercase letters after the first one will be automatically transformed in lower case...

To Reproduce
Steps to reproduce the behavior:

1. Go to Create an account
2. Fill name with John Adam
3. See that the name has been transformed to John adam

Expected behavior
Uppercase should be authorized.
This issue is linked with #2.

Screenshots
None

Desktop (please complete the following information):

• Browser: firefox
• Version: v2.1-beta