[Docs] row-details-renderer demo

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingGrid: Basic Template</title>
  <script nonce="undefined" src="https://cdn.zinggrid.com/dev/zinggrid-dev.min.js"></script>
  <style>
    body {
      background: #e6e6e6;
    }

    select {
      margin-bottom: 1rem;
    }

    zing-grid[loading] {
      height: 213px;
    }
  </style>
</head>

<body>

  <h3>`[rowDetailsRenderer]` points to a function that renders for the zg-row-details component.</h3>

  <zing-grid row-details-renderer="rowDetailsRenderer" data='[
      { "first": "Maria", "last": "John", "tests": [{"test1": 0.92, "test2": 0.97 ,"test3": 0.84}] },
      { "first": "David", "last": "Smith", "tests":  [{"test1": 0.86, "test2": 0.79, "test3": 0.86}] },
      { "first": "Felicity", "last": "Snow", "tests": [{"test1": 0.84, "test2": 0.66, "test3": 0.76}] }
    ]'>
    <zg-colgroup>
      <zg-column index="first"></zg-column>
      <zg-column index="last"></zg-column>
    </zg-colgroup>
  </zing-grid>

  <script>
    ZingGrid.setLicense(['26ccbfec16b8be9ee98c7d57bee6e498']); // window:load event for Javascript to run after HTML
    // because this Javascript is injected into the document head
    window.addEventListener('load', () => {
      // Javascript code to execute after DOM content
      let rowDetailsRenderer = (record, oDOMRowDetails) => {
        const nestedGrid = document.createElement('zing-grid');
        nestedGrid.data = record.tests;
        return nestedGrid;
      };
      ZingGrid.registerMethod(rowDetailsRenderer);
    });
  </script>
</body>

</html>

<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>ZingGrid: Basic Template</title>
  <script src="https://cdn.zinggrid.com/dev/zinggrid-dev.min.js"></script>
</head>

<body>

  <h3>`[rowDetailsRenderer]` points to a function that renders for the zg-row-details component.</h3>

  <zing-grid row-details-renderer="rowDetailsRenderer" data='[
      { "first": "Maria", "last": "John", "tests": [{"test1": 0.92, "test2": 0.97 ,"test3": 0.84}] },
      { "first": "David", "last": "Smith", "tests":  [{"test1": 0.86, "test2": 0.79, "test3": 0.86}] },
      { "first": "Felicity", "last": "Snow", "tests": [{"test1": 0.84, "test2": 0.66, "test3": 0.76}] }
    ]'>
    <zg-colgroup>
      <zg-column index="first"></zg-column>
      <zg-column index="last"></zg-column>
    </zg-colgroup>
  </zing-grid>

</body>

</html>

body {
  background: #e6e6e6;
}

select {
  margin-bottom: 1rem;
}

// window:load event for Javascript to run after HTML
// because this Javascript is injected into the document head
window.addEventListener('load', () => {
  // Javascript code to execute after DOM content
  let rowDetailsRenderer = (record, oDOMRowDetails) => {
    const nestedGrid = document.createElement('zing-grid');
    nestedGrid.data = record.tests;
    return nestedGrid;
  };
  ZingGrid.registerMethod(rowDetailsRenderer);
});