feat(website,extension): integrate NewLogoIcon as WebP favicon/header logo and convert to PNG extension icons

website/datenschutz.html

@@ -6,7 +6,7 @@
     <title>Datenschutz / Privacy Policy | KoalaSync</title>
     <link rel="preload" href="style.css" as="style">
     <link rel="stylesheet" href="style.css">
-    <link rel="icon" type="image/png" href="assets/logo.png">
+    <link rel="icon" type="image/webp" href="assets/NewLogoIcon_64.webp">
     <meta name="robots" content="noindex">
 
     <!-- Mobile Browser Theme Styling -->
@@ -26,7 +26,7 @@
     <nav>
         <div class="container nav-content">
             <a href="index.html" class="logo-area" style="text-decoration: none;">
-                <img src="assets/logo.png" alt="KoalaSync Logo" width="40" height="40">
+                <img src="assets/NewLogoIcon.webp" alt="KoalaSync Logo" width="40" height="40">
                 <span>KoalaSync</span>
             </a>
             <button class="hamburger" aria-label="Menu" aria-expanded="false">☰</button>