add 48x48 favicon

public/index.phtml

@@ -6,11 +6,13 @@
   <meta name="description" content="Open Source Content Exploring Platform for Kevacoin Blockchain" />
   <base href="<?php echo BASE_URL; ?>" />
   <?php if ($namespaceHash) { ?>
-    <link rel="icon" type="image/png" href="image.php?hash=<?php echo $namespaceHash; ?>&width=60&height=60&radius=30" />
+    <link rel="icon" type="image/png" href="image.php?hash=<?php echo $namespaceHash; ?>&width=48&height=48&radius=24" />
+    <link rel="icon" type="image/png" href="image.php?hash=<?php echo $namespaceHash; ?>&width=48&height=48&radius=24" sizes="48x48" />
     <link rel="icon" type="image/png" href="image.php?hash=<?php echo $namespaceHash; ?>&width=32&height=32&radius=16" sizes="32x32" />
     <link rel="icon" type="image/png" href="image.php?hash=<?php echo $namespaceHash; ?>&width=16&height=16&radius=8" sizes="16x16" />
   <?php } else { ?>
     <link rel="icon" type="image/png" href="image/favicon.png" />
+    <link rel="icon" type="image/png" href="image/favicon-48x48.png" sizes="48x48" />
     <link rel="icon" type="image/png" href="image/favicon-32x32.png" sizes="32x32" />
     <link rel="icon" type="image/png" href="image/favicon-16x16.png" sizes="16x16" />
   <?php } ?>