[Feature Request] Allow disabling indented code blocks.

[RokeJulianLockhart]

Is your feature request related to a problem? Please describe.

I author most of my markup in HTML, because it provides significantly more versatile and semantic markup capabilities. However, it has an (ultimately non-inherent, but in-practice) significant failure — <code> tags are not automatically syntax-highlighted by any parsers.

Markdown, being a superset of HTML, improves this perfectly. As an example, when I render the undermentioned in VS Code with the PowerShell extension installed, I see beautiful colours:

<tr>
<th>
Construction
</th>
<td>

```PS1
${'Status'} = [PSCustomObject]@{
    'Non-Chronological' = 'Indeterminate';
    'Chronological' = [PSCustomObject]@{
        1 = @(
            'Uncommenced',
            'Commenced'
        );
        2 = @(
            'Completed',
            'Cancelled'
        )
    }
}

${'Person'} = [PSCustomObject]@{
    3 = '';
    1 = '';
    2 = ''
}
```

</td>
</tr>

However, that's really difficult to read. It gets exponentially more difficult if, for example, you have nested tables with code blocks in each. At that stage, I basically have to re-indent and then de-indent each time I modify the markup. It's a dreadful workflow.

Describe the solution you'd like

Instead, it should be the undermentioned:

<tr>
    <th>
        Construction
    </th>
    <td>
        ```PS1
        ${'Status'} = [PSCustomObject]@{
            'Non-Chronological' = 'Indeterminate';
            'Chronological' = [PSCustomObject]@{
                1 = @(
                    'Uncommenced',
                    'Commenced'
                );
                2 = @(
                    'Completed',
                    'Cancelled'
                )
            }
        }

        ${'Person'} = [PSCustomObject]@{
            3 = '';
            1 = '';
            2 = ''
        }
        ```
    </td>
</tr>

Describe alternatives you've considered

The sole alternative is to remove all line breaks.

Additional context

Quotations are from microsoft/vscode#234485 (comment).