chore: rename classes

src/main/kotlin/cn/rtast/fancybot/FancyBot.kt

@@ -97,7 +97,7 @@ val commands = listOf(
     WeatherCommand(), CigaretteCommand(),
     RemakeCommand(), PixivCommand(),
     RUACommand(), NslookupCommand(),
-    NiuziSignCommand(), MyNiuziSignCommand(),
+    NiuziSignCommand(), MyNiuziCommand(),
     JiJianCommand(), LikeMeCommand()
 )
 

src/main/kotlin/cn/rtast/fancybot/commands/NiuziCommand.kt

@@ -123,7 +123,7 @@ class JiJianCommand : BaseCommand() {
     }
 }
 
-class MyNiuziSignCommand : BaseCommand() {
+class MyNiuziCommand : BaseCommand() {
     override val commandNames = listOf("我的牛子")
 
     override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {