Fix TypeScript tags

src/lib/components/Gallery.svelte

@@ -1,4 +1,4 @@
-<script type="ts">
+<script lang="ts">
 	import Photo from './Photo.svelte';
 
   /** The album. */

src/lib/components/Header.svelte

@@ -1,4 +1,4 @@
-<script type="ts">
+<script lang="ts">
 	import Icon from "./Icon.svelte";
 
   export let title = 'Galerie';

src/lib/components/Icon.svelte

@@ -1,4 +1,4 @@
-<script type="ts">
+<script lang="ts">
   /** Class name for additional CSS styling */
   export let clazz = '';
   export { clazz as class };

src/lib/components/Photo.svelte

@@ -1,4 +1,4 @@
-<script type="ts">
+<script lang="ts">
 	import { strf } from "$lib/data/language";
 	import { getFileName } from "$lib/util/links";
 	import Icon from "./Icon.svelte";