visual updates

src/lib/components/charts/ChartToolbar.svelte

@@ -19,11 +19,11 @@
     </ChartToolbar>
 -->
 <script module lang="ts">
-	export type { DownloadableChart } from './downloadChartsPng';
+	export type { ExportableChart } from './downloadChartsPng';
 </script>
 
 <script lang="ts">
-	import { type DownloadableChart, downloadChartsPng } from './downloadChartsPng';
+	import { type ExportableChart, downloadChartsPng } from './downloadChartsPng';
 
 	import type { Snippet } from 'svelte';
 
@@ -31,7 +31,7 @@
 
 	interface Props {
 		/** Chart components available for download (undefined entries are skipped) */
-		charts?: Array<DownloadableChart | undefined | null>;
+		charts?: Array<ExportableChart | undefined | null>;
 		/** Base file name for downloaded images (without extension) */
 		fileName?: string;
 		/** Optional CSS class for the outer container */