fix manifest

web/public/index.html

@@ -10,7 +10,7 @@
       content="Chad music streaming service"
     />
     <link rel="apple-touch-icon" href="{{ copy "/logo192.png" }}" />
-    <link rel="manifest" href="{{ copy "./manifest.json" }}" />
+    <link rel="manifest" href="{{ copy "/manifest.json" }}" />
     {{ livereload }}
     <title>Chad music</title>
   </head>