Allow setting custom icons for Occupation and Location

[Mar0xy]

as stated in twitch chat

[newbold]

Excellent suggestion! For the Advanced editor, this could be as simple as taking an icon tag on a metadata line and just using that for the icon, e.g.

# Foo Bar

| Pronouns: they/them
| Occupation: Cat Herder {cat}
| Location: The Heartland {heart}

For the Classic editor, though, I’m not sure I could manage this without some UI gymnastics (like an overhaul of the processes tied to the predefined metadata fields in use there). Maybe it would make sense to just not extend the flexibility to the Classic editor? Not sure — open to input there. In any case, I’ll get started on doing this for the Advanced editor soon. Thanks again for the suggestion!