got most of the login functionality together

ui/views/dialog.jet

@@ -25,6 +25,20 @@
         <p class="text-black text-sm mb-6">Required fields are marked with a <span class="text-red-600">*</span>.</p>
     {{ end }}
 
+    {{ if isset(amsterdam_errorMessage) }}
+        <!-- Error Message Banner -->
+        <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-6 hidden" id="error-banner">
+            <div class="flex items-center">
+                <div class="flex-shrink-0">
+                    <span class="text-red-500 text-xl">⚠️</span>
+                </div>
+                <div class="ml-3">
+                    <p class="text-sm font-medium" id="error-message">{{ CapitalizeString(amsterdam_errorMessage) }}.</p>
+                </div>
+            </div>
+        </div>
+    {{ end }}
+
         <div class="bg-gray-50 p-6 rounded-lg">
             <div class="space-y-4">
                 {{ range amsterdam_dialog.Fields }}

ui/views/error.jet

@@ -12,7 +12,7 @@
             <h1 class="text-blue-800 text-4xl font-bold mb-2">Amsterdam Internal Server Error</h1>
             <hr class="border-2 border-gray-400 w-4/5 mb-4">
             <p class="text-black text-sm mb-4">
-                The Amsterdam server encountered an error: {{ error }}
+                The Amsterdam server encountered an error: {{ CapitalizeString(error) }}.
             </p>
             <p class="text-black text-sm mb-4">
                 <a href="/">Click here</a> to return to the home page.