Protecting routes on hte FE and improving authentication

cmd/web/templates/base.layout.gohtml

@@ -48,7 +48,7 @@
                             </ul>
                         </li>
                         <li id="vt-link" class="nav-item d-none">
-                            <a class="nav-link" href="/virtual-terminal">Virtual Terminal</a>
+                            <a class="nav-link" href="/admin/virtual-terminal">Virtual Terminal</a>
                         </li>
                         <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                             <li id="login-link" class="nav-item d-none">

cmd/web/templates/login.page.gohtml

@@ -6,7 +6,7 @@ Login
 <div class="row">
     <div class="col-md-6 offset-md-3">
         <div class="alert alert-danger text-center d-none" id="login-messages"></div>
-        <form action=""
+        <form action="/login"
               method="post"
               name="login-form"
               id="login-form"

cmd/web/templates/terminal.page.gohtml

@@ -80,7 +80,7 @@ Virtual Terminal
             <strong>Bank Return Code</strong>: <span id="bank-return-code"></span>
         </p>
         <p>
-            <a href="/virtual-terminal" class="btn btn-primary">
+            <a href="/admin/virtual-terminal" class="btn btn-primary">
                 Charge another card
             </a>
         </p>