Combobox: fix primary icon visibility

The primary icon for a Combobox was never visible if a value was
selected because we were always attempting to use the icon for that item
even if it didn't have one.

.nvmrc

@@ -0,0 +1 @@
+24.12.0

package.json

@@ -4,7 +4,7 @@
 		"type": "git",
 		"url": "https://gitea.auvem.com/svelte-toolkit/sui.git"
 	},
-	"version": "1.1.2",
+	"version": "1.1.3",
 	"scripts": {
 		"dev": "vite dev",
 		"build": "vite build && pnpm run prepack",

src/lib/Combobox.svelte

@@ -654,9 +654,9 @@
 			>
 				{#if loading}
 					<Spinner class="stroke-sui-accent! -mt-0.5" size="1em" />
-				{:else if useHighlighted && highlighted}
+				{:else if useHighlighted && highlighted && highlighted.icon}
 					{@render optionIcon(highlighted)}
-				{:else if value}
+				{:else if value && value.icon}
 					{@render optionIcon(value)}
 				{:else if icon}
 					{#if typeof icon === 'function'}