restructured and refactored codebase

For better code organisation the entire Codebase has been restructured and cleaned up. handlers have been separated into an own package, as well as the model.

templates/base.html

@@ -6,7 +6,6 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>{{.Title}}</title>
-  <!-- Hier könnten weitere Meta-Tags, Stylesheets, JavaScript-Dateien usw. eingefügt werden -->
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css">
   <link href="https://cdn.jsdelivr.net/npm/daisyui@2.31.0/dist/full.css" rel="stylesheet" type="text/css">
   <script src="https://unpkg.com/htmx.org@1.9.9"
@@ -48,6 +47,18 @@
       flex-direction: row;
       justify-content: space-evenly;
     }
+
+    .banner {
+      position: relative;
+      text-align: center;
+    }
+
+    .centered {
+      position: absolute;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%);
+    }
   </style>
 </head>
 
@@ -59,7 +70,6 @@
 
   {{ template "footer" . }}
 
-  <!-- Hier könnten weitere Scripts eingefügt werden, z.B., htmx und andere Abhängigkeiten -->
 
 </body>