feat: Add dropdown for language switch

Signed-off-by: Pranav C <61551451+pranavxc@users.noreply.github.com>

packages/nc-gui/plugins/i18n.js

@@ -11,7 +11,7 @@ export default ({app, store}) => {
   // This way we can use it globally in our components through this.$i18n
   app.i18n = new VueI18n({
     // Set the initial locale
-    locale: "en",
+    locale: store.state.windows.language,
 
     // Set the fallback locale in case the current locale can't be found
     fallbackLocale: "en",
@@ -20,14 +20,18 @@ export default ({app, store}) => {
     messages: {
       en: require("~/static/lang/en.json"),
       zh: require("~/static/lang/zh.json"),
-      ja: require("~/static/lang/ja.json"),
+      // ja: require("~/static/lang/ja.json"),
       fr: require("~/static/lang/fr.json")
     }
   });
 
   store.watch(
     (state) => state.windows.language,
-    (language) => app.i18n.locale = language
+    (language) => {
+      if (app.i18n.availableLocales.includes(language)) {
+        app.i18n.locale = language
+      }
+    }
   );
 };
 /**