MM-17609 Add EnableSVGs setting (#11874)

* MM-17609 Add EnableSVGs setting

* MM-17609 Return SVG images in post metadata

app/diagnostics.go

@@ -299,6 +299,7 @@ func (a *App) trackConfig() {
 		"experimental_ldap_group_sync":                            *cfg.ServiceSettings.ExperimentalLdapGroupSync,
 		"disable_bots_when_owner_is_deactivated":                  *cfg.ServiceSettings.DisableBotsWhenOwnerIsDeactivated,
 		"enable_bot_account_creation":                             *cfg.ServiceSettings.EnableBotAccountCreation,
+		"enable_svgs":                                             *cfg.ServiceSettings.EnableSVGs,
 	})
 
 	a.SendDiagnostic(TRACK_CONFIG_TEAM, map[string]interface{}{