misc(repo): changing authors in info.json files to match my new discord username

aurora/info.json

@@ -1,5 +1,5 @@
 {
-  "author" : ["SeaswimmerTheFsh"],
+  "author" : ["SeaswimmerTheFsh (seasw.)"],
   "install_msg" : "Thank you for installing Aurora!\nMost of this cog's functionality requires enabling slash commands.\nYou can find the source code of this cog [here](https://coastalcommits.com/SeaswimmerTheFsh/SeaCogs).",
   "name" : "Aurora",
   "short" : "A full replacement for Red's core Mod cogs.",

backup/info.json

@@ -1,5 +1,5 @@
 {
-  "author" : ["SeaswimmerTheFsh"],
+  "author" : ["SeaswimmerTheFsh (seasw.)"],
   "install_msg" : "Thank you for installing Backup!\nYou can find the source code of this cog [here](https://coastalcommits.com/SeaswimmerTheFsh/SeaCogs).",
   "name" : "Backup",
   "short" : "A utility to make reinstalling repositories and cogs after migrating the bot far easier.",

nerdify/info.json

@@ -1,5 +1,5 @@
 {
-  "author" : ["SeaswimmerTheFsh"],
+  "author" : ["SeaswimmerTheFsh (seasw.)"],
   "install_msg" : "Thank you for installing Nerdify!\nYou can find the source code of this cog [here](https://coastalcommits.com/SeaswimmerTheFsh/SeaCogs). Based off of PhasecoreX's [UwU](<https://github.com/PhasecoreX/PCXCogs/tree/master/uwu>) cog.",
   "name" : "Nerdify",
   "short" : "Nerdify your text!",