feat: Trusted Types with DOMPurify

[andreituicu]

Building on top of https://github.com/adobe/aem-boilerplate/pull/228 using the new Trusted Types API, that is currently supported just by Chrome.

Test urls: Before: https://main--aem-boilerplate--adobe.aem.live/ After: https://trusted-types--helix-project-boilerplate--andreituicu.aem.live/

[aem-code-sync[bot]]

	Page	Scores	Audits	Google
:iphone:	/
:desktop_computer:	/

[andreituicu]

Deep PSI:

1. FCP: 976 (1018 ± 28.002)
2. LCP: 1051 (1131 ± 146.237)
3. SI: 976 (1018 ± 28.002)

The impact of ~10% increase of FCP/LCP/SI compared to the baseline we normally see on the boilerplate is expected, given the +9KB for DOMPurify as a rendering blocking resource.