[MM-48014] Auto-enable Apps Bar by moving EnableAppBar setting to DisableAppBar (#23010)

* auto-enable Apps Bar by moving EnableAppBar setting to DisableAppBar

* update playwright config

* remove EnableAppBar config setting to avoid confusion

* small fixes

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Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>

server/platform/services/telemetry/telemetry.go

@@ -780,7 +780,7 @@ func (ts *TelemetryService) trackConfig() {
 		"use_new_saml_library":                *cfg.ExperimentalSettings.UseNewSAMLLibrary,
 		"enable_shared_channels":              *cfg.ExperimentalSettings.EnableSharedChannels,
 		"enable_remote_cluster_service":       *cfg.ExperimentalSettings.EnableRemoteClusterService && cfg.FeatureFlags.EnableRemoteClusterService,
-		"enable_app_bar":                      *cfg.ExperimentalSettings.EnableAppBar,
+		"enable_app_bar":                      !*cfg.ExperimentalSettings.DisableAppBar,
 		"disable_refetching_on_browser_focus": *cfg.ExperimentalSettings.DisableRefetchingOnBrowserFocus,
 		"delay_channel_autocomplete":          *cfg.ExperimentalSettings.DelayChannelAutocomplete,
 	})