- added 'Log In' button
Revert "- added 'Log In' button"

This reverts commit c169ab12e918439f416bfb98fd0e8f3dc38f0d21.
Revert "Revert "- added 'Log In' button""

This reverts commit 47798a96a5ca08913d4ea522e02610053093d8af.