Improve docs readability & performance

DOCUMENTATION/themes/hugo-material-docs/static/images/favicons/browserconfig.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig><msapplication><tile><square70x70logo src="/ms-icon-70x70.png"/><square150x150logo src="/ms-icon-150x150.png"/><square310x310logo src="/ms-icon-310x310.png"/><TileColor>#ffffff</TileColor></tile></msapplication></browserconfig>

DOCUMENTATION/themes/hugo-material-docs/static/images/favicons/manifest.json

@@ -0,0 +1,41 @@
+{
+ "name": "App",
+ "icons": [
+  {
+   "src": "\/android-icon-36x36.png",
+   "sizes": "36x36",
+   "type": "image\/png",
+   "density": "0.75"
+  },
+  {
+   "src": "\/android-icon-48x48.png",
+   "sizes": "48x48",
+   "type": "image\/png",
+   "density": "1.0"
+  },
+  {
+   "src": "\/android-icon-72x72.png",
+   "sizes": "72x72",
+   "type": "image\/png",
+   "density": "1.5"
+  },
+  {
+   "src": "\/android-icon-96x96.png",
+   "sizes": "96x96",
+   "type": "image\/png",
+   "density": "2.0"
+  },
+  {
+   "src": "\/android-icon-144x144.png",
+   "sizes": "144x144",
+   "type": "image\/png",
+   "density": "3.0"
+  },
+  {
+   "src": "\/android-icon-192x192.png",
+   "sizes": "192x192",
+   "type": "image\/png",
+   "density": "4.0"
+  }
+ ]
+}