Added user add modal and converted to dark mode

HopFrame.Web/Pages/Administration/Layout/AdminLayout.razor

@@ -6,12 +6,12 @@
 
 <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
 
-<div class="page">
+<div class="page" style="background-color: #2c3034; position: relative; min-height: 100vh">
     <nav>
         <AdminMenu/>
     </nav>
 
-    <main>
+    <main style="padding-top: 60px">
         <article class="content px-4">
             @Body
             <BSCore/>