cache bust more css (#2119)

ErsatzTV/Pages/_Host.cshtml

@@ -17,8 +17,8 @@
     <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700&display=swap" rel="stylesheet"/>
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css" rel="stylesheet">
     <link href="_content/MudBlazor/MudBlazor.min.css?v=@(Assembly.GetAssembly(typeof(AbstractLocalizationInterceptor))?.GetName().Version?.ToString())" rel="stylesheet"/>
-    <link href="css/site.css" rel="stylesheet"/>
-    <link href="ErsatzTV.styles.css" rel="stylesheet"/>
+    <link href="css/site.css" asp-append-version="true" rel="stylesheet"/>
+    <link href="ErsatzTV.styles.css" asp-append-version="true" rel="stylesheet"/>
     <link href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css" rel="stylesheet">
     <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
     <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>