Pma/issue#45

[AndreyGudin]

1. Split auth

[emp74ark]

• buttons on pages signIn/signUp have different size;
• wrong redirection to '/auth' after registration
• redux store auth/mode become unused

[AndreyGudin]

• buttons on pages signIn/signUp have different size;
• wrong redirection to '/auth' after registration

Done

• redux store auth/mode become unused

Header.common.tsx string 27,51