Always include bootstrap stylesheet

Author: Greenie0506

samples/existingWindowsBackend/webfrontend-linux/Views/Shared/_Layout.cshtml

@@ -5,14 +5,13 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>@ViewData["Title"] - webfrontend</title>
 
+    <link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"
+          asp-fallback-href="~/lib/bootstrap/dist/css/bootstrap.min.css"
+          asp-fallback-test-class="sr-only" asp-fallback-test-property="position" asp-fallback-test-value="absolute" />
     <environment include="Development">
-        <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.css" />
         <link rel="stylesheet" href="~/css/site.css" />
     </environment>
     <environment exclude="Development">
-        <link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"
-              asp-fallback-href="~/lib/bootstrap/dist/css/bootstrap.min.css"
-              asp-fallback-test-class="sr-only" asp-fallback-test-property="position" asp-fallback-test-value="absolute" />
         <link rel="stylesheet" href="~/css/site.min.css" asp-append-version="true" />
     </environment>
 </head>