Update to svelte 5

svelte/src/layout/IconBlock.svelte

@@ -1,12 +1,19 @@
 <script lang="ts">
-export let icon_href = ""
-export let width = "750px"
+let {
+	icon_href = "",
+	width = "750px",
+	children
+}: {
+	icon_href?: string;
+	width?: string;
+	children?: import('svelte').Snippet;
+} = $props();
 </script>
 
 <div class="block" style="width: {width}; max-width: 100%">
 	<img src={icon_href} alt="File icon" class="icon">
 	<div class="description">
-		<slot></slot>
+		{@render children?.()}
 	</div>
 </div>