general + PWA optimizations

selfhosting logo + PWA score optimization

public/index.html

@@ -5,6 +5,7 @@
   <meta charset="utf-8" />
   <link rel="icon" href="/favicon.png" />
   <link rel="manifest" href="/manifest.webmanifest">
+  <link rel="apple-touch-icon" href="/lfk-logo.png">
   <meta name="theme-color" content="#FFFFFF">
   <meta name="viewport" content="width=device-width, initial-scale=1" />
   <meta name="description" content="Lauf Für Kaya! - Admin" />