feat: configure custom app icons and add splash screen support for Android and iOS

apps/rider/web/index.html

@@ -36,6 +36,9 @@
   </script>
   <!-- This script adds the flutter initialization JS code -->
   <script src="flutter.js" defer=""></script>
+  
+  
+  <meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" name="viewport">
   <style id="splash-screen-style">
     html {
       height: 100%
@@ -101,7 +104,6 @@
       document.body.style.background = "transparent";
     }
   </script>
-  <meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" name="viewport">
 </head>
 <body>
   <picture id="splash">
@@ -109,6 +111,7 @@
       <source srcset="splash/img/dark-1x.png 1x, splash/img/dark-2x.png 2x, splash/img/dark-3x.png 3x, splash/img/dark-4x.png 4x" media="(prefers-color-scheme: dark)">
       <img class="center" aria-hidden="true" src="splash/img/light-1x.png" alt="">
   </picture>
+  
   <script>
     window.addEventListener('load', function(ev) {
       // Download main.dart.js