Style forms, migrate more styles to Tailwind

app/views/devise/unlocks/new.html.erb

@@ -2,15 +2,13 @@
 
 <%= form_for(resource, as: resource_name, url: unlock_path(resource_name), html: { method: :post }) do |f| %>
   <%= render "devise/shared/error_messages", resource: resource %>
-
-  <div class="field">
+  <p>
     <%= f.label :email %><br />
     <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
-  </div>
-
-  <div class="actions">
-    <%= f.submit "Resend unlock instructions" %>
-  </div>
+  </p>
+  <p class="mt-8">
+    <%= f.submit "Resend unlock instructions", class: 'btn-md btn-blue' %>
+  </p>
 <% end %>
 
 <%= render "devise/shared/links" %>