chore: check for no results

src/views/user/settings/Caldav.vue

@@ -109,6 +109,9 @@ const deleteToken = async (token: CaldavTokenModel) => {
 	const r = await service.delete(token)
 	success(r)
 	const i = tokens.value.findIndex(v => v.id === token.id)
+	if (i === -1) {
+		return
+	}
 	tokens.value.splice(i, 1)
 }
 </script>