AWS CloudWatch Real User Monitoring (RUM) Web Client

The `aws-rum-web` client is a JavaScript library designed for real user monitoring (RUM) of web applications, integrating seamlessly with Amazon CloudWatch. It provides telemetry on critical user experience metrics such as page load timings, JavaScript errors, and HTTP request performance. The current stable version is 2.1.0, and the package maintains a relatively active release cadence with frequent minor and patch updates. Key differentiators include its tight integration into the AWS observability ecosystem, enabling developers to gain deeper insights into their web application's frontend performance and user behavior directly within CloudWatch, and its comprehensive data collection capabilities for various web vitals and errors.