added optional FullScreenLayout

BlazingCoffee/Client/Shared/FullScreenLayout.razor

@@ -0,0 +1,6 @@
+@inherits LayoutComponentBase
+@layout MainLayout
+
+<div class="full-screen">
+@Body
+</div>

BlazingCoffee/Client/Theme/main.scss

@@ -44,4 +44,9 @@ a.k-link.k-state-selected {
 .k-window-titlebar {
     border-top-left-radius: 3px;
     border-top-right-radius: 3px;
+}
+
+.full-screen > h1 {
+    padding: 1em;
+    background-color: $base-bg;
 }