Option to render embed's title centered

[amatsagu]

Like in title, small change but I think it could help a lot.
Similar like in fields - you can decide whether it should be inline or not, it would help a lot having option to center title of our embeds.
It makes more sense when embed uses image, then those 2 would be perfectly aligned.

For now - many bots just uses custom white space characters to mimic spaces which sometimes works and sometime break entire message by rendering it in weird way... (Not speaking of invisible characters in code...)

I've used mentioned, "hidden" symbols to make below example:

Another example with "transparent" left line so it should look better: