Draft: Replace fa-times with GitLab SVG close icon

What does this MR do?

Screenshots

Location	With FA icon	With SVG icon
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Edit --> Description templates dropdown_
[HOST]/[GROUP]/[PROJECT]/-/pipeline_schedules
[HOST]/[GROUP]/[PROJECT]/-/clusters/new?provider=gcp _Select project (Removed as it isn't used)_
[HOST]/-/ide/project/[GROUP]/[PROJECT]/edit/[BRANCH]/-/ _Press t --> Search for file_
[HOST]/[GROUP]/[PROJECT]/-/boards _Edit board --> Labels --> Create label_
[HOST]/[GROUP]/[PROJECT]/-/boards _Edit board --> Labels --> Create label_
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Sidebar --> Labels_
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Sidebar --> Labels --> Create project label_
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Sidebar --> Assignees_
[HOST]/admin/runners
`[HOST]/admin/users/[USERNAME]/projects
[HOST]/admin/users/[USERNAME]
[HOST]/groups/[GROUP]/-/settings/ci_cd _Runners_
https://gdk.localhost:3443/admin/dev_ops_score
[HOST]/[GROUP]/[PROJECT]
[HOST]/admin/broadcast_messages _Create dismissable message_
[HOST]/dashboard/issues?assignee_username=[USERNAME]
[HOST]/[GROUP]/[PROJECT]/edit _Service desk_
[HOST]/[GROUP]/[PROJECT]/-/boards _Add list --> Assignee_
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Linked issues --> Add_
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Sidebar --> Epics_
[HOST]/groups/[GROUP]/-/epics
[HOST]/groups/[GROUP]/-/group_members _Edit button next to member (requires LDAP sync to appear 🙈)_
[HOST]/[GROUP]/[PROJECT]/-/milestones/[ID]
[HOST]/[GROUP]/[PROJECT]/-/issues/[ID] _Sidebar --> Epics upgrade plan link (requires the promotion to be enabled)
[HOST]/[GROUP]/[PROJECT]/-/issues/new _Description templates link (requires the promotion to be enabled)
[HOST]/[GROUP]/[PROJECT]/-/project_members

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team

Closes #224534 (closed)