refactor(documents): unify count + action links into one row

Move result count, bulk-edit button, and new-document link into a shared
flex row so they appear on the same line. Adds an edit icon to the
bulk-edit button to visually match the existing plus icon on the add link.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/routes/DocumentList.svelte

@@ -13,14 +13,12 @@ let {
 	items,
 	canWrite,
 	error,
-	total = 0,
 	q = '',
 	sort = 'DATE'
 }: {
 	items: DocumentSearchItem[];
 	canWrite: boolean;
 	error?: string | null;
-	total?: number;
 	q?: string;
 	sort?: SortMode;
 } = $props();
@@ -71,29 +69,6 @@ function groupByReceiver(docItems: DocumentSearchItem[]) {
 }
 </script>
 
-<!-- DOCUMENT LIST HEADER -->
-<div class="mb-2 flex justify-end">
-	{#if canWrite}
-		<a
-			href="/documents/new"
-			class="inline-flex items-center gap-1 text-sm font-medium text-ink-2 transition-colors hover:text-ink"
-		>
-			<img
-				src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Add/Add-General-MD.svg"
-				alt=""
-				aria-hidden="true"
-				class="h-4 w-4"
-			/>
-			{m.docs_btn_new()}
-		</a>
-	{/if}
-</div>
-
-<!-- RESULT COUNT -->
-{#if total > 0}
-	<p class="mb-3 font-sans text-base text-ink-2">{m.docs_result_count({ count: total })}</p>
-{/if}
-
 <!-- ERROR -->
 {#if error}
 	<div class="border border-line bg-surface shadow-sm">