Repository: yt-dlp
Issue: Feature Request: Add support for trading.live
Labels: site-request,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm requesting a site-specific feature
- [X] I've verified that I'm running yt-dlp version **2023.07.06** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [X] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

Hungary

### Example URLs

https://www.trading.live/en/sifusteve/video/12413

### Provide a description that is worded well enough to be understood

With it's lack of speed controls, using [trading.live](https://www.trading.live/) is frustrating. I'd really appreciate it if it was added to yt-dlp, as it's currently "unsupported". See the included -vU output below.

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
yt-dlp -vU https://www.trading.live/en/sifusteve/video/12413
[debug] Command-line config: ['-vU', 'https://www.trading.live/en/sifusteve/video/12413']
[debug] System config "/etc/yt-dlp.conf": ['-o', '/path/to/%(extractor)s/%(series)s/%(series)s-%(uploader)s-%(title)s.%(ext)s', '--sub-lang', 'en,it', '--no-mtime']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.07.06 [b532a3481] (zip)
[debug] Python 3.10.11 (CPython x86_64 64bit) - Linux-5.15.0-76-generic-x86_64-with-glibc2.31 (OpenSSL 3.0.9 30 May 2023, glibc 2.31)
[debug] exe versions: ffmpeg 4.2.7, ffprobe 4.2.7, phantomjs 2.1.1
[debug] Optional libraries: brotli-None, certifi-2023.05.07, pycrypto-3.18.0, sqlite3-2.6.0, websockets-11.0.3
[debug] Proxy map: {}
[debug] Loaded 1855 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Available version: stable@2023.07.06, Current version: stable@2023.07.06
Current Build Hash: cedf44a9cf3c241520a692c1006d276e6f434d4d945727c47cb1a70d32953f4a
yt-dlp is up to date (stable@2023.07.06)
[generic] Extracting URL: https://www.trading.live/en/sifusteve/video/12413
[generic] 12413: Downloading webpage
WARNING: [generic] Falling back on generic information extractor
[generic] 12413: Extracting information
[debug] Looking for embeds
ERROR: Unsupported URL: https://www.trading.live/en/sifusteve/video/12413
Traceback (most recent call last):
  File "/usr/local/bin/3rdparty/yt-dlp/yt-dlp/yt_dlp/YoutubeDL.py", line 1560, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/bin/3rdparty/yt-dlp/yt-dlp/yt_dlp/YoutubeDL.py", line 1688, in __extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/3rdparty/yt-dlp/yt-dlp/yt_dlp/extractor/common.py", line 710, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/3rdparty/yt-dlp/yt-dlp/yt_dlp/extractor/generic.py", line 2568, in _real_extract
    raise UnsupportedError(url)
yt_dlp.utils.UnsupportedError: Unsupported URL: https://www.trading.live/en/sifusteve/video/12413
```