[User Availability] Schedule unsetting status from the user profile page

This is a follow-up issue to #262086 (closed)

Problem to solve

Related to #262086 (closed), user's can set their status and availability from either the set status modal, or from the user profile page. With #262086 (closed) users can set a time in the future for their status to be unset, this only applies to the set status modal.

We should provide the same functionality from the the user profile page.

Related links

• This feature proposal was split from another issue: #259649 (comment 422813376)

Implementation plan

1. Refactor https://gitlab.com/gitlab-org/gitlab/-/blob/master/app/assets/javascripts/set_status_modal/set_status_modal_wrapper.vue#L225 into it's own component
2. Mount that shared component in app/views/profiles/show.html.haml

Availability and Testing

1. Adding new unit and integration tests should suffice. No E2E test or updates needed at this time.
2. Feel free to reach out to @vburton if help is needed for reviewing QA failures from any review-qa-* jobs on MR.

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