Display User name using #to_s

app/views/layouts/application.html.erb

@@ -29,7 +29,7 @@
       <%= image_link_to t(".issue_tracker"), "bug-outline", issue_tracker_url,
             class: "extendedright" %>
       <% if user_signed_in? %>
-        <%= image_link_to_unless_current(current_user.email, "account-wrench-outline",
+        <%= image_link_to_unless_current(current_user, "account-wrench-outline",
           edit_user_registration_path) {} %>
         <% if current_user_disguised? %>
           <%= image_link_to t(".revert"), "incognito-off", revert_users_path %>

app/views/users/index.html.erb

@@ -11,7 +11,7 @@
   <tbody>
     <% @users.each do |user| %>
       <tr>
-        <td class="link"><%= link_to user.email, user_path(user) %></td>
+        <td class="link"><%= link_to user, user_path(user) %></td>
         <td>
           <% if user == current_user %>
             <%= user.status %>

app/views/users/mailer/password_change.html.erb

@@ -1,3 +1,3 @@
-<p>Hello <%= @resource.email %>!</p>
+<p>Hello <%= @resource %>!</p>
 
 <p>We're contacting you to notify you that your password has been changed.</p>

app/views/users/mailer/reset_password_instructions.html.erb

@@ -1,4 +1,4 @@
-<p>Hello <%= @resource.email %>!</p>
+<p>Hello <%= @resource %>!</p>
 
 <p>Someone has requested a link to change your password. You can do this through the link below.</p>
 

app/views/users/mailer/unlock_instructions.html.erb

@@ -1,4 +1,4 @@
-<p>Hello <%= @resource.email %>!</p>
+<p>Hello <%= @resource %>!</p>
 
 <p>Your account has been locked due to an excessive number of unsuccessful sign in attempts.</p>