Support additional social media providers

[benrfairless]

At the moment, you can only share a request via X (formerly Twitter), Facebook and Medium.

We have serious concerns about the impact X and Facebook is having on civil society, and the option for Medium is rarely used.

It would be good if social media options could be expanded to include a wider range of social media - Mastodon and Bluesky appear to be a good starting point, however I'm sure there are other platforms from other areas of the world that would also be good to have.

[WilliamWDTK]

One could envision using the Web Share API, which allows a website to use a system's in-built share function. This won't work for all devices, but could be a useful addition.

[garethrees]

One could envision using the Web Share API

That looks quite a nice option. I like the idea of a more platform agnostic approach.