Remove excess Div wrappers

[broxen]

As noted in #4524 there are an excess of div wrappers in generated page html.

This PR removes this code section because it seems that standalone text is already wrapped in paragraph elements, making this superfluous and simultaneously correcting the issue of excess div wrappers.

Closes #4524

[NGPixel]

These excess divs are actually there to protect against XSS at the root level in non-div elements. There's probably a more elegant solution but this was a quick way to ensure content is sanitized properly further down the rendering pipeline.

[broxen]

to protect against XSS at the root level

Ah, I see. I've pushed a proposed change to this so that it ignores "empty" newlines and returns, but still captures potentially dangerous text. I don't know if it's any more elegant, but it works 😄

Tested with the following text in a new page:

<h3>XSS Attack</h3>
<p>Some text here</p> {{constructor.constructor('alert("Wiki.JS Stored XSS")')()&#x7d&#x7d

a
b\n
[][}{}{}<<<<<>>>>>