fix: replace express-ejs-layouts with EJS partial includes (header/footer)

views/auth/login.ejs

@@ -1,3 +1,4 @@
+<%- include('../partials/header') %>
 <div class="row justify-content-center">
   <div class="col-md-5">
     <div class="card shadow">
@@ -164,3 +165,4 @@
     el.classList.remove('d-none');
   }
 </script>
+<%- include('../partials/footer') %>