Do not decode html entities

Ensures that embedded images (and the like) do not break.

When decoding, an embed would be incorrectly processed as:
```html
<center>%{[ data-embed-type=&quot;image&quot; data-embed-id=&quot;5c9cebaadad15fb329dd5219&quot; data-embed-element=&quot;aside&quot; contenteditable=&quot;false&quot; ]}%</center>
```

When decoding is disabled, the embed is processed as expected:
```html
<center>%{[ data-embed-type="image" data-embed-id="5c9cebaadad15fb329dd5219" data-embed-element="aside" contenteditable="false" ]}%</center>
```

This holds true for other HTML entities that are always being decoded by Base.

src/rules/pennwell/default.js

@@ -39,7 +39,7 @@ const extractAuthor = ($) => {
 
 module.exports = async (body) => {
   const html = (body || '').replace(/\s\s+/g, '');
-  const $ = cheerio.load(html);
+  const $ = cheerio.load(html, { decodeEntities: false });
 
   const deck = extractDeck($);
   const author = extractAuthor($);