feat: add exception catch

src/main/kotlin/cn/rtast/fancybot/commands/lookup/WikipediaCommand.kt

@@ -34,6 +34,7 @@ class WikipediaCommand : BaseCommand() {
             message.reply(msg)
         }
         val title = args.first()
+        try {
             val response = Http.get<WikipediaResponse>(
                 wikipediaAPI,
                 mapOf(
@@ -61,5 +62,11 @@ class WikipediaCommand : BaseCommand() {
                 .addText(fullUrl)
                 .build()
             message.reply(msg)
+        } catch (_: NoSuchElementException) {
+            val msg = MessageChain.Builder()
+                .addText("没有查询到指定的wiki页面呢 >>> $title")
+                .build()
+            message.reply(msg)
+        }
     }
 }