Add metadata to video pages

[moonleay]

Describe the feature

Make page metadata contain infos about the video.
For example: title, uploader, upload date and (part of) the description.
Currently it just returns 'piped' as the title and 'An alternative privacy-friendly YouTube frontend which is efficient by design.' as description.

Why would this be useful to add?

This would improve the experience when linking piped form 3rd party sites and they try to fetch, what the link is about.

Concept(s)

Make the metadata more consistent with the metadata youtube provides.

This is the metadata, which piped provides:

And this is what YouTube provides:

(These screenshots are taken from the Discord Dev tools, since I am not aware of a better way to see the metadata of websites currenty)

Additional context

No response

Acknowledgements

• I have searched the existing issues and this is NOT a duplicate or related to another open issue.
• I have written a short but informative title.
• I filled out all of the requested information in this form.

[Bnyro]

#1362