[Enhancement]: Add Mastodon Share Icon

[dstark]

What you'd like to propose?

Similar to #81, would it be possible to add Mastodon to the share icon options?

Code of Conduct

• I agree to follow this project's Code of Conduct

[adityatelange]

#1189 (comment)

[dstark]

Got it. Sorry I missed that other issue, and thanks so much for the pointer to it.