share button on local extension page and marketplace

[altsang]

Many times a user may want to share an extension they are using quickly by sending someone a link. It's easier to generate and find such link on the extension page itself in all the locations accessible including the extensions installed on one's local installation in addition to the marketplace. Suggest adding a share button that generates a URL link that can be posted easily that links to the extension's listing in the marketpalce

[altsang]

mentioning @isidorn for viz too