Search plugins fail to parse API from apibay.org due to invalid handling of JSON response

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qBittorrent & operating system versions

qBittorrent: 5.0.3 (64-bit) Windows and 5.0.2 WebUI (64-bit)
OS: W11 and Arch Linux

What is the problem?

API apibay.org returns weird JSON that causes the piratebay search engine to crash when handling its response. If some search results contain " (quotation marks) characters, the server escapes them by replacing " with " HTML entities in order to still provide a syntactically valid JSON response. While this is not incorrect, it would be best if apibay.org returned properly escaped quotes, i.e. using backslashes.

When handling the response data, functions retrieve_url and htmlentitydecode blindly unescape all entities thereby corrupting previously valid JSON. As a consequence, json.loads crashes. For example:

{
  "title": "Ubuntu 22.04.5 LTS ("Jammy Jellyfish")"
}

becomes

{
  "title": "Ubuntu 22.04.5 LTS ("Jammy Jellyfish")"
}

I believe this is easily fixable by manually replacing all " with \" before going through HTML entity names.

Related issue but not quite the same: 15194.

Steps to reproduce

1. Install the piratebay search plugin.
2. Search for any torrent which title contains quotes (e.g. try Dwayne Johnson You re Welcome from Moana 2).
3. This torrent does exist on the website and is indeed returned by the apibay.org API.
4. No result is displayed on the qBT user interface due to the script crashing.

Additional context

No response

Log(s) & preferences file(s)

No log is generated when such thing happens.