Update I18n.svelte

Listening to the reactive Settings property Language to change the application language on save!
Removed component comment at the top

src/lib/components/Lang/I18n.svelte

@@ -1,15 +1,24 @@
-<!-- I18n.svelte -->
-
-<script>
-	import { addMessages, init } from 'svelte-i18n';
+<script lang="ts">
+	import { addMessages, init, locale } from 'svelte-i18n';
+	import { settings } from '$lib/stores/settings.store';
+	import { SUPPORTED_LANGUAGES } from '$lib/utils/supported-languages';
 	import en from '../../lang/en.json';
 	import es from '../../lang/es.json';
 
 	addMessages('en', en);
 	addMessages('es', es);
 
+	$: {
+		if ($settings.language) {
+			const selectedLocale = SUPPORTED_LANGUAGES[parseInt($settings.language)];
+			locale.set(selectedLocale);
+		} else {
+			locale.set('en');
+		}
+	}
+
 	init({
-		initialLocale: 'en',
+		initialLocale: SUPPORTED_LANGUAGES[parseInt($settings.language)],
 		fallbackLocale: 'en'
 	});
 </script>