fix: show WhiteBoardTutorial by default to prevent flash

src/tw-whiteboard/tiddlywiki-ui/PageLayout/WhiteBoardLayout.tid

@@ -21,10 +21,9 @@ tc-page-container tc-page-view-$(storyviewTitle)$ tc-language-$(languageTitle)$
 	<$navigator story="$:/StoryList" history="$:/HistoryList" openLinkFromInsideRiver={{$:/config/Navigation/openLinkFromInsideRiver}} openLinkFromOutsideRiver={{$:/config/Navigation/openLinkFromOutsideRiver}} relinkOnRename={{$:/config/RelinkOnRename}}>
 		{{$:/core/ui/CommandPaletteTemplate}}
 		<div class=<<containerClasses>>>
-		<$log focus={{$:/state/Whiteboard/PageLayout/focusedTiddler}} />
 			<% if [{$:/state/Whiteboard/PageLayout/focusedTiddler}match[]] %>
 				<main class="tw-whiteboard-layout-main-area">
-					<$whiteboard tiddler={{{[all[shadows+tiddlers]field:type[application/vnd.tldraw+json]sort[modified]first[]]}}} height="100vh" focused="yes" />
+					<$whiteboard tiddler="WhiteBoardTutorial" height="100vh" focused="yes" />
 				</main>
 			<% else %>
 				<!-- default value, when first opened, select widget's state tiddler is empty, but default value filter gives a value, we show that tiddler -->