[+] Encapsulate showError function

src/components/app/app.ts

@@ -251,6 +251,17 @@ export default class App extends Vue
         else this.loading += '\n' + message;
     }
 
+    /**
+     * Show error message on loading screen
+     *
+     * @param message Error message
+     */
+    private showError(message: string)
+    {
+        this.loadingError = true;
+        this.loading = message;
+    }
+
     /**
      * This is called when a navigation tab is clicked
      *