[Angular] Allow usage with trusted types

[timonmasberg]

Currently, when using CSP with trusted types, an error will be thrown, since the IconService uses innerHTML. I propose a function for optional registering of a trusted policy to allow using trusted types.

[timonmasberg]

you can utilize the default policy for this

[acomito]

@timonmasberg Can you clarify? You set require-trusted-types-for to default?

[timonmasberg]

require-trusted-types-for to default?

No, you can create a policy for "default", which allows you to sanitize the innerHTML calls from the IconService.