More flexible profile links

[jmarquis]

Modders should be able to add a variety of links rather than the small handful of static options that currently exist.

• drag & drop reorderable
• options + icons for Twitter, Etsy, Instagram, Discord, KoFi, (others?)
• custom links should support custom text instead of just "Website"

[St0wy]

Would be nice to have a field to put an email address too (with icon)