Display the acronym when a server has no icon

[pedrofracassi]

Discord displays a text acronym for invites without icons, and we shoud mimic that behavior.

Discord

invidget

[Doges]

k, what we can use?

[pedrofracassi]

discord.js has a function that turns a guild name into an acronym. It should work just fine. It'd then be a matter of resizing it correctly to fit the square and rendering it there.