Fetch URL of company logo using SuiteScript.

let configRecObj = config.load({
    type: config.Type.COMPANY_INFORMATION
});
let fileID = configRecObj.getValue({
    fieldId: 'formlogo'
})
let formLogo = file.load({
    id: fileID
});
let netSuiteDomain = configRecObj.getValue({ fieldId: 'appurl' });
let imageURL = netSuiteDomain + formLogo.url;