Fix linter complaints

src/routes/private/events/creator/steps/StepUploadParticipants.svelte

@@ -1,8 +1,7 @@
 <script lang="ts">
 	import Papa from 'papaparse';
 
-	type Participant = { name: string; surname: string; email: string };
-	let { participants = $bindable() } = $props() as { participants: Participant[] };
+	let { participants = $bindable() } = $props();
 	let loading = $state(false);
 	let showForm = $derived(participants.length === 0);