Fixed sign-in display issue on mobile devices
Updated sign-up page with same style as sign-in page
Minor capitalization changes to create link
Added minor text changes to landing page
Improved user flow by automatically redirecting to create poll page if users don't have any existing polls
Added nominatr logo
Added navigation role to navbar
Added directive to prevent user from accidentally leaving the create poll page
Improved create poll layout on mobile devices
Improved edit poll layout on mobile devices