add close label to close button in changelog modal, only accessible for screen readers

src/lib/components/ChangelogModal.svelte

@@ -43,6 +43,7 @@
 					fill="currentColor"
 					class="w-5 h-5"
 				>
+					<p class="sr-only">{$i18n.t('Close')}</p>
 					<path
 						d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z"
 					/>