feat(widget-config): visual app selector grid with search and icons

Replace plain select dropdown with a searchable 2-column grid showing
app icons for the app widget type in the inline config panel.

src/lib/components/widget/WidgetConfigPanel.svelte

@@ -2,11 +2,19 @@
 	import { t } from 'svelte-i18n';
 	import { fade } from 'svelte/transition';
 	import { tick } from 'svelte';
+	import DynamicIcon from '$lib/components/ui/DynamicIcon.svelte';
+
+	interface AppInfo {
+		id: string;
+		name: string;
+		icon?: string | null;
+		iconType?: string;
+	}
 
 	interface Props {
 		widgetType: string;
 		initialConfig?: Record<string, unknown>;
-		apps?: Array<{ id: string; name: string }>;
+		apps?: AppInfo[];
 		mode: 'create' | 'edit';
 		onSave: (config: Record<string, unknown>) => void;
 		onCancel: () => void;
@@ -14,6 +22,14 @@
 
 	let { widgetType, initialConfig = {}, apps = [], mode, onSave, onCancel }: Props = $props();
 
+	// App search
+	let appSearchQuery = $state('');
+	const filteredApps = $derived(
+		appSearchQuery.trim()
+			? apps.filter((a) => a.name.toLowerCase().includes(appSearchQuery.toLowerCase()))
+			: apps
+	);
+
 	// -- Form fields initialised from config --
 	// App
 	let appId = $state((initialConfig.appId as string) ?? '');
@@ -173,12 +189,53 @@
 		{#if widgetType === 'app'}
 			<div>
 				<label class={labelClass}>{$t('widget.app') ?? 'App'}</label>
-				<select bind:value={appId} class={inputClass} bind:this={firstInput}>
-					<option value="">Select an app...</option>
-					{#each apps as app}
-						<option value={app.id}>{app.name}</option>
-					{/each}
-				</select>
+				<!-- Search -->
+				<div class="relative mb-2">
+					<svg class="absolute left-2.5 top-1/2 -translate-y-1/2 text-muted-foreground" xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+						<circle cx="11" cy="11" r="8" /><line x1="21" y1="21" x2="16.65" y2="16.65" />
+					</svg>
+					<input
+						type="text"
+						bind:value={appSearchQuery}
+						bind:this={firstInput}
+						placeholder={$t('common.search') ?? 'Search apps...'}
+						class="w-full rounded-lg border border-input bg-background py-1.5 pl-8 pr-3 text-sm text-foreground placeholder:text-muted-foreground focus:border-primary focus:outline-none focus:ring-1 focus:ring-ring/30"
+					/>
+				</div>
+				<!-- App grid -->
+				<div class="max-h-48 overflow-y-auto rounded-lg border border-input bg-background p-1">
+					{#if filteredApps.length === 0}
+						<p class="py-4 text-center text-xs text-muted-foreground">{$t('common.no_results') ?? 'No apps found'}</p>
+					{:else}
+						<div class="grid grid-cols-2 gap-1">
+							{#each filteredApps as app}
+								<button
+									type="button"
+									onclick={() => { appId = app.id; }}
+									class="flex items-center gap-2 rounded-lg px-2.5 py-2 text-left text-sm transition-colors
+										{appId === app.id
+											? 'bg-primary/10 text-primary ring-1 ring-primary/30'
+											: 'text-foreground hover:bg-accent'}"
+								>
+									{#if app.icon && app.iconType === 'lucide'}
+										<DynamicIcon name={app.icon} size={18} />
+									{:else if app.icon && app.iconType === 'url'}
+										<img src={app.icon} alt="" class="h-[18px] w-[18px] rounded object-contain" />
+									{:else if app.icon && app.iconType === 'simple'}
+										<img src="https://cdn.simpleicons.org/{app.icon.toLowerCase()}" alt="" class="h-[18px] w-[18px]" />
+									{:else if app.icon && app.iconType === 'emoji'}
+										<span class="text-base leading-none">{app.icon}</span>
+									{:else}
+										<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" class="text-muted-foreground">
+											<rect x="2" y="3" width="20" height="14" rx="2" /><line x1="8" y1="21" x2="16" y2="21" /><line x1="12" y1="17" x2="12" y2="21" />
+										</svg>
+									{/if}
+									<span class="truncate">{app.name}</span>
+								</button>
+							{/each}
+						</div>
+					{/if}
+				</div>
 			</div>
 
 		{:else if widgetType === 'bookmark'}

src/lib/components/widget/WidgetGrid.svelte

@@ -109,7 +109,7 @@
 		}
 	}
 
-	const appsForPicker = $derived(allApps.map((a) => ({ id: a.id, name: a.name })));
+	const appsForPicker = $derived(allApps.map((a) => ({ id: a.id, name: a.name, icon: a.icon, iconType: a.iconType })));
 </script>
 
 {#if widgets.length === 0 && !editMode.active}