Add contact:facebook (instagram, twitter..)

[thibaultmol]

Hi, when adding businesses to OSM, most of them have Facebook, Instagram, Twitter or others.
Because of that, it probably makes sense to have that be an option in the interface for people to add.
(I already do this manually, but for people that prefer using the UI to select tags, it should be considered to show up there as well)

https://wiki.openstreetmap.org/wiki/Key:contact

[danieldegroot2]

Edit: This is related to #121 .

[tyrasd]

it's related, but not really a duplicate, since issue #121 is dealing with the different ways to map social media data (e.g. contact:facebook=* vs. facebook=*). At the moment the tagging presets don't include any social media fields.

[riQQ]

contact:facebook was added in #859 and is so far the only social media field.

[tiptoptom]

Would you accept a PR for contact:mastodon=*?

https://taghistory.raifer.tech/?#***/contact%3Amastodon/