feat: add support for TrustedHTML

[raphael-inglin-ergon]

feat: add support for TrustedHTML / trusted-types

Allows the user to supply HTML as TrustedHTML instead of only as string, to satisfy trusted-type policies. (see https://web.dev/trusted-types/)

This PR contains:

• bugfix
• feature
• refactor
• tests
• documentation
• others

Breaking Changes?

• yes
• no

Checklist

• commit messages follow the Conventional Commits pattern
  • A feature commit message is prefixed "feat:"
  • A bugfix commit message is prefixed "fix:"
  • A document related commit is prefixed "docs:"
• docs have been added / updated (for bug fixes / features)

Describe Your Changes

• functions & constructors that allow passing HTML string now also accept TrustedHTML
• icons configured by NgxEditorServiceConfig can be of type TrustedHTML in addition to string
• SanitizeHtmlPipe only transforms values that are not already TrustedHTML

Does this PR affects any existing issues?

• yes
• no

[sibiraj-s]

Thanks.

[github-actions]

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