feat: support parse youtube video

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

@@ -48,4 +48,5 @@ class ConfigManager : JsonFileHandler<Config>("config.json") {
     val apiSpaceKey = config.apiSpaceKey
     val apiRtastKey = config.apiRtastKey
     val azureAppClientId = config.azureAppClientId
+    val youtubeDataApiKey = config.youtubeDataApiKey
 }