added templates, more solid DarkMode

templates/index.html

@@ -0,0 +1,43 @@
+{{ define "index.html" }}
+
+{{ block "title" . }}Passwort-Generator{{ end }}
+
+{{ block "head" . }}
+<script>
+    function copyToClipboard() {
+        const password = document.getElementById("password").innerText;
+        navigator.clipboard.writeText(password).then(() => {
+            const toast = document.getElementById("toast");
+            toast.style.visibility = "visible";
+            setTimeout(() => { toast.style.visibility = "hidden"; }, 1500);
+        }).catch(err => {
+            console.error("Fehler beim Kopieren: ", err);
+            alert("Kopieren fehlgeschlagen. Bitte manuell kopieren: " + password);
+        });
+    }
+
+    function generateNewPassword() {
+        fetch("/api/password")
+            .then(response => response.text())
+            .then(password => {
+                document.getElementById("password").innerText = password;
+            })
+            .catch(error => console.error("Fehler:", error));
+    }
+</script>
+{{ end }}
+
+{{ block "body" . }}
+<div class="container">
+    <a href="/help" class="help-link">?</a>
+    <a href="https://gitea.scu.si/Florian.Walther/Web-Password" class="code-link">Sourcecode</a>
+    <h1>Generiertes Passwort</h1>
+    <div id="password">{{ .Password }}</div>
+    <div class="buttons">
+        <button class="copy-button" onclick="copyToClipboard()">In Zwischenablage kopieren</button>
+        <button class="renew-button" onclick="generateNewPassword()">Neues Passwort generieren</button>
+    </div>
+    <div id="toast">✓ Kopiert!</div>
+</div>
+{{ end }}
+{{ end }}