show the stack icon and name in stack action popups

src/lib/components/ConfirmPopover.svelte

@@ -22,6 +22,8 @@
 		onOpenChange?: (open: boolean) => void;
 		children: Snippet<[{ open: boolean }]>;
 		extraContent?: Snippet;
+		/** Optional leading glyph rendered before the confirm text (e.g. a stack icon). */
+		icon?: Snippet;
 	}
 
 	let {
@@ -39,7 +41,8 @@
 		onConfirm,
 		onOpenChange,
 		children,
-		extraContent
+		extraContent,
+		icon
 	}: Props = $props();
 
 	const triggerClass = $derived(unstyled
@@ -109,7 +112,8 @@
 	>
 		<div class="flex flex-col gap-1.5">
 			<div class="flex items-center gap-2">
-				<span class="text-xs whitespace-nowrap">{action} {itemType} {#if displayName}<strong>{displayName}</strong>{/if}?</span>
+				{#if icon}{@render icon()}{/if}
+				<span class="text-xs whitespace-nowrap">{action} {itemType} {#if displayName}<strong class="font-semibold text-foreground">{displayName}</strong>{/if}?</span>
 				<Button size="sm" {variant} class="h-6 px-2 text-xs" onclick={handleConfirm}>
 					{confirmText}
 				</Button>

src/lib/components/StackIcon.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { Box } from 'lucide-svelte';
+	import { Box, Layers } from 'lucide-svelte';
 	import { getStackIconComponent, isSelfhstIcon, selfhstRef, isCustomIcon } from '$lib/utils/icons';
 	import { selfhstIcons, requestSelfhst } from '$lib/stores/selfhst-icons';
 
@@ -23,8 +23,12 @@
 
 	const selfhst = $derived(selfhstRef(icon));
 	const custom = $derived(isCustomIcon(icon));
-	// Lucide is the fallback for any non-selfhst, non-custom value (incl. null).
-	const LucideIcon = $derived(!isSelfhstIcon(icon) && !custom ? getStackIconComponent(icon || '') : null);
+	// A named lucide icon resolves via the map; an EMPTY/null value falls back to Layers -
+	// the generic stack glyph used everywhere else in the stacks UI (page header, tiles,
+	// list). getStackIconComponent's own default is Boxes, which reads as a different icon.
+	const LucideIcon = $derived(
+		!isSelfhstIcon(icon) && !custom ? (icon ? getStackIconComponent(icon) : Layers) : null
+	);
 
 	// Resolve the selfh.st icon via the shared batch store (one request for the whole
 	// list) instead of a per-icon <img src>. `resolved`: data URI when ready, '' when it