Add support for "Display Name" for user profiles

[brootle]

Add support for "Display Name" for user profiles.

This should be important for accounts that want their profile to be more official and that's also good for SEO. A lot of benefits really.

cc @diamondhands0

[tijno]

This is already an existing dip - #24
Maybe close this and add to the existing discussion?

[brootle]

I am not sure, this DIP seems more straight forward and easy to implement

[oO]

Agreed that a simple, single field called "Display Name" is better than LastName+FirstName, which is very western, and even then, doesn't work for people who use a middle name, made-up names, entities or corporations, non-western name formats like China and Korea, and implies a verified identity like FB or Google.

As a note, Supernovas.app already supports a Display Name field. they just don't store it on-chain.

[brootle]

this is cool, I am sure Supernovas would be happy if they could store display name on chain as part of user profile 👍