Refactor app.vue to support internationalization

Author: Thavarshan

src/ui/app.vue

@@ -3,16 +3,24 @@ import Layout from '@/ui/layouts/DefaultLayout.vue';
 import { VideoConverter, AudioConverter } from '@/ui/blocks';
 import { createConverterStore } from '@/ui/stores';
 import { onMounted, onBeforeUnmount } from 'vue';
+import { useLanguagePreferences } from '@/ui/composables/language-mode';
 
 const useVideoConverterStore = createConverterStore();
 const videoStore = useVideoConverterStore();
 
 const useAudioConverterStore = createConverterStore();
 const audioStore = useAudioConverterStore();
 
+const {
+  currentLocale,
+  setLocale,
+} = useLanguagePreferences();
+
 onMounted(async () => {
   await videoStore.init();
   await audioStore.init();
+
+  setLocale(currentLocale.value);
 });
 
 onBeforeUnmount(() => {