public function update(Request $request)
    {
        $this->authorize('update', Settings::class);

        $this->validate($request, [
            'appname'     => 'required',
            'description' => 'required',
            'keywords'    => 'required',
            'author'      => 'required',
        ]);

        Settings::first()->update([
            'appname'       => $request->appname,
            'description'   => $request->description,
            'keywords'      => $request->keywords,
            'author'        => $request->author,
        ]);

        return redirect()->route('laralum::settings.index', ['p' => 'Settings'])->with('success', __('laralum_settings::general.updated_settings'));
    }