Prefix apple-touch-icon links with PUBLIC_URL. (#8005)

Author: benblank

packages/cra-template-typescript/template/public/index.html

@@ -9,7 +9,7 @@
       name="description"
       content="Web site created using create-react-app"
     />
-    <link rel="apple-touch-icon" href="logo192.png" />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--
       manifest.json provides metadata used when your web app is installed on a
       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/

packages/cra-template/template/public/index.html

@@ -9,7 +9,7 @@
       name="description"
       content="Web site created using create-react-app"
     />
-    <link rel="apple-touch-icon" href="logo192.png" />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--
       manifest.json provides metadata used when your web app is installed on a
       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/