Return the newly updated favorites list, not the old one

It actually doesn't matter that much that we don't pass the updated list, because the updated list only has the servers that were removed anyway

loritta-bot-discord/src/main/kotlin/net/perfectdreams/loritta/morenitta/website/routes/dashboard/DashboardRoute.kt

@@ -78,9 +78,11 @@ class DashboardRoute(loritta: LorittaBot) : RequiresDiscordLoginLocalizedRoute(l
 							it[UserWebsiteSettings.favoritedGuilds] = Json.encodeToString(updatedFavoritedGuilds)
 						}
 					}
+
+					return@newSuspendedTransaction updatedFavoritedGuilds
 				}
 
-				favoritedGuilds
+				return@newSuspendedTransaction null
 			}
 
 			val guilds = userGuilds.filter { LorittaWebsite.canManageGuild(it) }