Open PDF documents in a new tab

This is the final code. I've put it here as a backup for myself and for anyone else who might need it.

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/view-formatting.schema.json",
  "hideSelection": true,
  "hideColumnHeader": true,
  "rowFormatter": {
    "elmType": "a",
    "attributes": {
      "href": "[$FileRef]",
      "target": "_blank"
    },
    "style": {
      "display": "flex",
      "align-items": "center",
      "text-decoration": "none",
      "border": "1px solid #e0e0e0",
      "border-radius": "5px",
      "margin": "8px",
      "color": "red"
    },
    "children": [
      {
        "elmType": "img",
        "attributes": {
          "src": "@thumbnail.medium"
        },
        "style": {
          "width": "100px",
          "height": "100px",
          "max-height": "120px"
        }
      },
      {
        "elmType": "span",
        "txtContent": "[$FileLeafRef]",
        "style": {
          "font-size": "15px",
          "font-weight": "600",
          "margin": "20px",
          "color": "#000"
        }
      }
    ]
  }
}

This is the final code. I've put it here as a backup for myself and for anyone else who might need it ^^

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/view-formatting.schema.json",
  "hideSelection": true,
  "hideColumnHeader": true,
  "rowFormatter": {
    "elmType": "a",
    "attributes": {
      "href": "[$FileRef]",
      "target": "_blank"
    },
    "style": {
      "display": "flex",
      "align-items": "center",
      "text-decoration": "none",
      "border": "1px solid #e0e0e0",
      "border-radius": "5px",
      "margin": "8px"
    },
    "children": [
      {
        "elmType": "img",
        "attributes": {
          "src": "@thumbnail.medium"
        },
        "style": {
          "width": "100px",
          "height": "100px",
          "max-height": "120px"
        }
      },
      {
        "elmType": "span",
        "txtContent": "[$FileLeafRef]",
        "style": {
          "font-size": "13px",
          "font-weight": "600",
          "margin": "20px",
          "color": "#000"
        }
      }
    ]
  }
}