feat: 优化代码

app/src/main/java/io/legado/app/help/BookHelp.kt

@@ -231,10 +231,16 @@ object BookHelp {
         if (!c.substringBefore("\n").contains(title)) {
             c = "$title\n$c"
         }
+        try {
             when (AppConfig.chineseConverterType) {
                 1 -> c = ZhConvertBootstrap.newInstance().toSimple(c)
                 2 -> c = ZhConvertBootstrap.newInstance().toTraditional(c)
             }
+        } catch (e: Exception) {
+            withContext(Main) {
+                App.INSTANCE.toast("简繁转换出错")
+            }
+        }
         return c
             .replace("\\s*\\n+\\s*".toRegex(), "\n${ReadBookConfig.bodyIndent}")
     }