(app.scss) add .uppercase utility class
(app.scss) add .uppercase utility class

this is needed to style uppercase strings. Because hardcoding UPPERCASE
is not an option now, all string will be placed in ../locales and they
will be lowercased by default

GolosChain/tolstoy,GolosChain/tolstoy,GolosChain/tolstoy,enisey14/platform,enisey14/platform