update images and hivesigner tutorial to reflect latest version

_tutorials-javascript/hivesigner.md

...torials/02_hivesigner/images/account_type_application.png

...ls-js/tutorials/02_hivesigner/images/hivesigner_login.png

...ls-js/tutorials/02_hivesigner/images/hivesigner_myapp.png

...ials/02_hivesigner/images/steemconnect_account_create.png

...tutorials/02_hivesigner/images/steemconnect_dashboard.png

...-js/tutorials/02_hivesigner/images/steemconnect_login.png

...js/tutorials/02_hivesigner/images/steemconnect_myapps.png

...s/tutorials/02_hivesigner/images/steemconnect_new_app.png

...js/tutorials/02_hivesigner/images/steemconnect_signin.png