Added display of favicon

Author: ChristianBollmann482

public/favicon.ico

@@ -0,0 +1,21 @@
+{
+  "name": "Setasign",
+  "short_name": "Setasign",
+  "icons": [
+    {
+      "src": "/images/favicon/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/images/favicon/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ],
+  "theme_color": "#ffffff",
+  "background_color": "#ffffff",
+  "display": "standalone"
+}

public/images/favicon/apple-touch-icon.png

@@ -170,7 +170,12 @@ function str_ends_with($str, $end) {
     <link rel="stylesheet" type="text/css" href="./layout/style.css?2"/>
     <link rel="stylesheet" type="text/css" href="./js/codemirror-5.61.1/codemirror.css"/>
     <link rel="canonical" href="{$canonical}" />
-    <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon"/>
+    <link rel="icon" type="image/png" href="/images/favicon/favicon-96x96.png" sizes="96x96" />
+    <link rel="icon" type="image/svg+xml" href="/images/favicon/favicon.svg" />
+    <link rel="shortcut icon" href="/images/favicon/favicon.ico" />
+    <link rel="apple-touch-icon" sizes="180x180" href="/images/favicon/apple-touch-icon.png" />
+    <meta name="apple-mobile-web-app-title" content="Setasign" />
+    <link rel="manifest" href="/images/favicon/site.webmanifest" />
     <script type="text/javascript" src="./js/jquery-3.6.0.min.js"></script>
     <script type="text/javascript" src="./js/codemirror-5.61.1/codemirror.js"></script>
     <script type="text/javascript" src="./js/clipboard.js"></script>