cleanup: trim trailing whitespace (#11136)

* cleanup: trim trailing whitespace

* update(`.editorconfig`)

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

packages/frontend/src/pages/admin/overview.federation.vue

@@ -58,7 +58,7 @@ let federationSubActiveDiff = $ref<number | null>(null);
 let fetching = $ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
-	
+
 onMounted(async () => {
 	const chart = await os.apiGet('charts/federation', { limit: 2, span: 'day' });
 	federationPubActive = chart.pubActive[0];