chore: tailwind v4 migration

src/lib/components/common/DragGhost.svelte

@@ -24,7 +24,7 @@
 	bind:this={popupElement}
 	class="fixed top-0 left-0 w-screen h-[100dvh] z-50 touch-none pointer-events-none"
 >
-	<div class=" absolute text-white z-[99999]" style="top: {y + 10}px; left: {x + 10}px;">
+	<div class=" absolute text-white z-99999" style="top: {y + 10}px; left: {x + 10}px;">
 		<slot></slot>
 	</div>
 </div>