Fix error message for empty GR Number in getGRSerial response

app/Http/Controllers/PdfController.php

@@ -457,7 +457,7 @@ class PdfController extends Controller
         {
              return response()->json([
                 'status_code' => 'ERROR',
-                'status_description' => 'GR Number is cannot be empty!'
+                'status_description' => 'GR Number cannot be empty!'
             ], 403);
         }
 
@@ -491,7 +491,6 @@ class PdfController extends Controller
             ], 404);
         }
 
-
         $grRecords = GrMaster::where('plant_id', $plantId)
                 ->where('gr_number', $grNumber)
                 ->get(['serial_number', 'item_id']);