[MM-57384] Investigate app performance on repeated calls to users/status/ids and users/ids calls on posted event (#26644)

https://mattermost.atlassian.net/browse/MM-57384
https://mattermost.atlassian.net/browse/MM-58109
https://mattermost.atlassian.net/browse/MM-58110

server/config/client.go

@@ -97,6 +97,7 @@ func GenerateClientConfig(c *model.Config, telemetryID string, license *model.Li
 
 	props["DisableRefetchingOnBrowserFocus"] = strconv.FormatBool(*c.ExperimentalSettings.DisableRefetchingOnBrowserFocus)
 	props["DisableWakeUpReconnectHandler"] = strconv.FormatBool(*c.ExperimentalSettings.DisableWakeUpReconnectHandler)
+	props["UsersStatusAndProfileFetchingPollIntervalMilliseconds"] = strconv.FormatInt(*c.ExperimentalSettings.UsersStatusAndProfileFetchingPollIntervalMilliseconds, 10)
 
 	// Set default values for all options that require a license.
 	props["ExperimentalEnableAuthenticationTransfer"] = "true"