[meta] Updates favicon and manifest

Author: jacomyal

public/apple-touch-icon.png

@@ -2,10 +2,20 @@
   "name": "gephi.org",
   "short_name": "gephi.org",
   "icons": [
-    { "src": "/android-chrome-192x192.png", "sizes": "192x192", "type": "image/png" },
-    { "src": "/android-chrome-512x512.png", "sizes": "512x512", "type": "image/png" }
+    {
+      "src": "/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
   ],
-  "theme_color": "#ffffff",
-  "background_color": "#ffffff",
+  "theme_color": "#3e393c",
+  "background_color": "#3e393c",
   "display": "standalone"
 }

public/favicon-96x96.png

@@ -35,9 +35,11 @@ const appPages = [
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <link rel="canonical" href="https://gephi.org" />
+    <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <link rel="shortcut icon" href="/favicon.ico" />
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
-    <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
-    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />
+    <meta name="apple-mobile-web-app-title" content="MyWebSite" />
     <link rel="manifest" href="/site.webmanifest" />
     <meta
       name="description"