Fix: HTML meta tags fix for iOS (#16269)

public/views/index-template.html

@@ -17,8 +17,8 @@
 
   <link rel="stylesheet" href="public/build/grafana.[[ .Theme ]].<%= webpack.hash %>.css">
 
-  <meta name="apple-mobile-web-app-capable" content="yes">
-  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-capable" content="yes"/>
+  <meta name="apple-mobile-web-app-status-bar-style" content="black"/>
   <meta name="msapplication-TileColor" content="#2b5797">
   <meta name="msapplication-config" content="public/img/browserconfig.xml">
 </head>