Resolve "Improve system notes for Zoom links"

What does this MR do?

Changes Zoom call added/removed notes:

@user a Zoom call was added to this issue

into:

@user added a Zoom call to this issue

Same concept applies for removed

How to test this

Add/remove a zoom link (for example: https://zoom.us/j/5873603787) to an issue description.

Screenshot

before:

after:

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance 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

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 #65427 (closed)

EE port https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/15454