Add option to disable use of `eww-readability` in `org-web-tools-read-url-as-org`

I am taking advantage of `org-web-tools-read-url-as-org` to retrieve word definitions and synonyms from web pages as org buffers. This is truly convenient as I get the content in org syntax and can use no matter what site I want without having to rely on a package.

Unfortunately content is missing for some urls. Examples:
- https://www.powerthesaurus.org/land
- https://www.dwds.de/wb/Landschaft

Tracked this down to the [line](https://github.com/alphapapa/org-web-tools/blob/b5b7fee01eaac845ca80240f3a2d22d426179ce3/org-web-tools.el#L341) `(eww-score-readability dom)` in `org-web-tools--eww-readable`. If I remove that line from the function it inserts all content. `eww-score-readability` is rather cryptic so not sure how to solve this issue.