Add support for Angular's Trusted Types to eliminate CSP compatibility issues and errors when using the Kendo UI for Angular components in applications with strict Trusted Types security policies.

At the moment, the internal logic of the Kendo UI for Angular components uses innerHTML in various scenarios, like placeholder content for virtualization, dynamic rendering of icons and indicators, etc.

Thus, when applications have strict CSP with Trusted Types enabled, developers encounter a "This document requires 'TrustedHTML' assignment" error. 

Although all content set via innerHTML is internally controlled and secure, the Kendo UI for Angular components should work seamlessly in applications with strict CSP and Trusted Types policies without requiring developers to modify their security configuration.