Fix stage icon: arrow with large arrowhead into flat line

Author: milanofthe

src/lib/components/icons/Icon.svelte

@@ -423,9 +423,9 @@
 {:else if name === 'stage'}
 	<!-- Arrow pointing down into a horizontal line (apply/stage changes) -->
 	<svg width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-		<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
 		<polyline points="7 10 12 15 17 10"/>
 		<line x1="12" y1="15" x2="12" y2="3"/>
+		<line x1="4" y1="21" x2="20" y2="21"/>
 	</svg>
 {:else if name === 'font-size-increase'}
 	<svg width={size} height={size} viewBox="0 0 24 24" fill="currentColor" stroke="none">