JupyterLab settings

user-keyboard-shortcuts.json

{
    "notebook:close-and-shutdown": {
      "command": "notebook:close-and-shutdown",
      "keys": [
          "Alt W"
      ],
      "selector": ".jp-Notebook"
    },
    "notebook:change-cell-to-raw": {
      "command": "notebook:change-cell-to-raw",
      "keys": [],
      "selector": ".jp-Notebook:focus"
    }
}

user-notebook.json

{
    "codeCellConfig": {
      "lineNumbers": true,
      "tabSize": 4
    },
    "markdownCellConfig": {
      "autoClosingBrackets": true,
      "matchBrackets": true,
      "tabSize": 2
    }
}