expand share icons and supported networks for sharing

[1000283]

Just as the author can add 34 icons to diverse social platforms s/he might have an account on; it would be interesting if a visitor was able to share a post onto those same platforms.

Also, there are other fediverse networks out there, such as

• pleroma and misskey for microblogging (like twitter);
• funkwhale for audio (soundcloud, spotify);
• peertube for video (youtube, lbry);
• pixelfed for images (instagram);
• GNU social, friendica, hubzilla and diaspora* for general social networking (facebook).

[adityatelange]

@1000283 Sure we can add those platforms to the list.
The problem is getting the SVG icons style match with those of currently added.

Also it depends on whether the platform has a share-URL, which it parses so as to generate a post.
While in case of social-icons we aren't dependent on platform, it is just a link to it !

[stale]

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