app/views/layouts/application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Slovnik</title>
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
</head>
<body>
<ul>
<% if user_signed_in? %>
<li><%= link_to "Hi, #{current_user.email}", edit_user_registration_path %></li>
<li><%= link_to 'Sign Out', destroy_user_session_path, method: :delete %></li>
<% else %>
<li><%= link_to 'Sign In', new_user_session_path %></li>
<li><%= link_to 'Sign Up', new_user_registration_path %></li>
<% end %>
</ul>
<p class="notice"><%= notice %></p>
<p class="alert"><%= alert %></p>
<%= yield %>
</body>
</html>