Dynamic Matrix allows row reordering in "display" mode

[JaneSjs]

User Issue: T16211 - Set a survey as read-only
https://surveyjs.answerdesk.io/internal/ticket/details/T16211

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "radiogroup",
     "name": "question2",
     "defaultValue": "Item 2",
     "choices": [
      "Item 1",
      "Item 2",
      "Item 3"
     ]
    },
    {
     "type": "matrixdynamic",
     "name": "question1",
     "defaultValue": [
      {
       "Column 1": 1,
       "Column 2": 1,
       "Column 3": 1
      },
      {
       "Column 1": 2,
       "Column 2": 2,
       "Column 3": 2
      }
     ],
     "columns": [
      {
       "name": "Column 1"
      },
      {
       "name": "Column 2"
      },
      {
       "name": "Column 3"
      }
     ],
     "choices": [
      1,
      2,
      3,
      4,
      5
     ],
     "allowRowsDragAndDrop": true
    }
   ]
  }
 ],
 "mode": "display"
}

Expected behavior: it is impossible to reorder rows in "display" mode.