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

utils/config.go

@@ -474,7 +474,7 @@ func getClientConfig(c *model.Config) map[string]string {
 	props["MaxNotificationsPerChannel"] = strconv.FormatInt(*c.TeamSettings.MaxNotificationsPerChannel, 10)
 	props["TimeBetweenUserTypingUpdatesMilliseconds"] = strconv.FormatInt(*c.ServiceSettings.TimeBetweenUserTypingUpdatesMilliseconds, 10)
 	props["EnableUserTypingMessages"] = strconv.FormatBool(*c.ServiceSettings.EnableUserTypingMessages)
-	props["EnablChannelViewedMessages"] = strconv.FormatBool(*c.ServiceSettings.EnablChannelViewedMessages)
+	props["EnableChannelViewedMessages"] = strconv.FormatBool(*c.ServiceSettings.EnableChannelViewedMessages)
 
 	props["DiagnosticId"] = CfgDiagnosticId
 	props["DiagnosticsEnabled"] = strconv.FormatBool(*c.LogSettings.EnableDiagnostics)