Indentation fix

test.nim

when someModule:
    proc a =
        const someHtml = """
<div>breaks indentation</div>
        """
        
    proc b =
        const someHtml = """
        <div>extra indentation</div>
        """
        
    proc b =
        const someHtml = html"""
            <div>fixed indentation</div>
            """
        
renders as:

<div>breaks indentation</div>
        <div>extra indentation</div>
<div>fixed indentation</div>