refactor: some general code improvements

src/app/app.component.ts

@@ -17,6 +17,7 @@ import {
 import { DataService } from './services/data.service';
 import { SettingsService } from './services/settings.service';
 import { WhatsNewService } from './services/whats-new.service';
+import { Language } from './settings/language.enum';
 import { Settings } from './settings/settings.interface';
 import { Theme } from './settings/theme.enum';
 import { STORE_KEY } from './shared/enums/store-keys.enum';
@@ -55,7 +56,7 @@ export class AppComponent {
     ];
 
     /** Default language as fallback */
-    DEFAULT_LANG = 'en';
+    DEFAULT_LANG = Language.ENGLISH;
 
     /**
      * Creates an instance of AppComponent
@@ -109,7 +110,7 @@ export class AppComponent {
         if (this.electronService.isElectron) {
             this.commandsList.forEach((command) =>
                 this.electronService.listenOn(command.id, () =>
-                    this.ngZone.run(() => command.callback())
+                    this.ngZone.run((data) => command.callback(data))
                 )
             );
         }