Move error message to view

vedia.rb

@@ -134,7 +134,7 @@ post '/login' do
       redirect '/'
     end
   else
-    @error = _("Incorrect email or password.")
+    @error = true
     erb :login
   end
 end

views/login.erb

@@ -2,7 +2,7 @@
 
 <% if @error %>
   <div class="alert alert-warning mb-4">
-    <p><%= @error %></p>
+    <p><%= _("Incorrect email or password.") %></p>
     <p class="mb-0"><a href="/reset"><%= _("Reset password") %></a></p>
   </div>
 <% end %>