Clean up template

web/src/template.html

@@ -6,11 +6,9 @@
 
 		%sapper.base%
 
-		<link rel="manifest" href="manifest.json" />
-		<meta name="theme-color" content="#0096D1">
+		<meta name="theme-color" content="#2d3748">
 
 		<link rel="icon" type="image/png" href="favicon.png" />
-		<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon-180.png">
 
 		<!-- Sapper generates a <style> tag containing critical CSS
   		for the current page. CSS for the rest of the app is