This commit adds logic for sanitizing links within Duo Chat.

Links coming from the domain of docs.gitlab.com or the domain that is
set in the GITLAB_BASE_URL environment variable for the GitLab instance
will not be sanitized.

Currently 'gitlab.com' domain is hard coded into the list as well. This
will be removed after updating the monolith code base to utilize the
baseUrl property that was added.

A copy of the Duo Chat for now

Fixes merge conflict in duo_chat.vue file.

# Conflicts:
#   src/components/chat/duo_chat.vue

Adds trusted-urls back in after merge conflict resolved.

chore(deps): update dependency dompurify to v3.2.5

See merge request !112

feat: new agentic duo chat UI

See merge request !111

fix: add frontend duo link sanitization

See merge request !52

# [8.12.0](v8.11.0...v8.12.0) (2025-04-07)

### Bug Fixes

* add frontend duo link sanitization ([158bfba6](158bfba6))
* add frontend duo link sanitization ([54934911](54934911))
* add frontend duo link sanitization ([0bd7dd47](0bd7dd47))

### Features

* new agentic duo chat UI ([76a3cffd](76a3cffd))