lint: fix unused expressions by adding void operator (26 fixes)

Co-Authored-By: Justin Edmund <justin@jedmund.com>

src/lib/components/admin/AutoSaveStatus.svelte

@@ -60,7 +60,7 @@
 
   const label = $derived.by(() => {
     // Force dependency on refreshKey to trigger re-computation
-    refreshKey
+    void refreshKey
 
     switch (status) {
       case 'saving':

src/lib/components/admin/EssayForm.svelte

@@ -125,7 +125,7 @@ $effect(() => {
 
 	// Trigger autosave when form data changes
 	$effect(() => {
-		title; slug; status; content; tags; activeTab
+		void title; void slug; void status; void content; void tags; void activeTab
 		if (hasLoaded && autoSave) {
 			autoSave.schedule()
 		}

src/lib/components/admin/PhotoPostForm.svelte

@@ -114,7 +114,7 @@ let autoSave = mode === 'edit' && postId
 
 	// Trigger autosave when form data changes
 	$effect(() => {
-		title; status; content; featuredImage; tags
+		void title; void status; void content; void featuredImage; void tags
 		if (hasLoaded && autoSave) {
 			autoSave.schedule()
 		}

src/lib/components/admin/ProjectForm.svelte

@@ -88,7 +88,7 @@
 	// Trigger autosave when formData changes (edit mode)
 	$effect(() => {
 		// Establish dependencies on fields
-		formStore.fields; activeTab
+		void formStore.fields; void activeTab
 		if (mode === 'edit' && hasLoaded && autoSave) {
 			autoSave.schedule()
 		}

src/lib/components/admin/SimplePostForm.svelte

@@ -132,7 +132,7 @@ $effect(() => {
 
 // Trigger autosave when form data changes
 $effect(() => {
-	status; content; linkUrl; linkDescription; title
+	void status; void content; void linkUrl; void linkDescription; void title
 	if (hasLoaded && autoSave) {
 		autoSave.schedule()
 	}

src/routes/admin/posts/[id]/edit/+page.svelte

@@ -378,7 +378,7 @@ onMount(async () => {
 	// Trigger autosave when form data changes
 	$effect(() => {
 		// Establish dependencies
-		title; slug; status; content; tags; excerpt; postType
+		void title; void slug; void status; void content; void tags; void excerpt; void postType
 		if (hasLoaded) {
 			autoSave.schedule()
 		}