Fix EnablChannelViewedMessages typo (#6822)

* Update config.json

* Update config.go

* Update config.go

* Update channel.go

* Update post.go

* Update diagnostics.go

* Update config.go

app/diagnostics.go

@@ -189,7 +189,7 @@ func trackConfig() {
 		"allow_edit_post":                               *utils.Cfg.ServiceSettings.AllowEditPost,
 		"post_edit_time_limit":                          *utils.Cfg.ServiceSettings.PostEditTimeLimit,
 		"enable_user_typing_messages":                   *utils.Cfg.ServiceSettings.EnableUserTypingMessages,
-		"enable_channel_viewed_messages":                *utils.Cfg.ServiceSettings.EnablChannelViewedMessages,
+		"enable_channel_viewed_messages":                *utils.Cfg.ServiceSettings.EnableChannelViewedMessages,
 		"time_between_user_typing_updates_milliseconds": *utils.Cfg.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds,
 		"cluster_log_timeout_milliseconds":              *utils.Cfg.ServiceSettings.ClusterLogTimeoutMilliseconds,
 		"enable_post_search":                            *utils.Cfg.ServiceSettings.EnablePostSearch,