v0.3.0

• created new deploy_app() function for deploying apps to Polished Hosting.
• removed dependencies on shinydashboardPlus due to breaking change with dashboardHeaderPlus() and dashboardPagePlus().
• sign_out_from_shiny() can now be used in the session$onSessionEnded() or onStop() to sign the user
  out when the user's session ends.
• added support for package dependency detection (#129)
• added cookie options { sameSite: "none", secure: true } when the app is being served over https. This allows Polished Authentication to work in an iframe on most browsers.
• added email validation to email inputs in the sign in and registration modules.
• allow for a function UI be passed to the "ui" argument of secure_ui().
• added "redirect_page" argument to sign_out_from_shiny()
• new "is_auth_required" argument added to global_sessions_config() which (when set to FALSE) allows users to access your app without being signed in. By default this argument is set to TRUE. (#109)
• moved toast notification to top (better for mobile) and extended showDuration. (#107)