feat: add zibi and unset zibi command, bump rob to 1.8.4

src/main/kotlin/cn/rtast/fancybot/util/file/BadWordManager.kt

@@ -9,7 +9,7 @@ package cn.rtast.fancybot.util.file
 
 import cn.rtast.fancybot.util.JsonFileHandler
 
-class BadWordManager: JsonFileHandler<List<String>>("bd.json", listOf<String>()) {
+class BadWordManager : JsonFileHandler<List<String>>("bd.json", listOf<String>()) {
 
     fun contain(word: String): Boolean {
         return this.read<List<String>>().any { word.contains(it) }