added support for legacy tickets, fixed switching of modes and also style updates

Modules/Helpdesk/Http/Controllers/TicketCommentStoreController.php

@@ -8,6 +8,7 @@ use App\Http\Controllers\Controller;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Str;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Validation\Rule;