refactor(CSS): migrate Bootstrap CSS utils to Tailwind

What does this MR do?

Closes #2981 (closed), #2977 (closed), #2974 (closed), #2973 (closed), #2972 (closed), #2971 (closed), #2970 (closed), #2963 (closed)

Migrates Bootstrap CSS utility classes to Tailwind. This is one step in making removing BootstrapVue easier.

Screenshots or screen recordings

See inline screenshots

Integration merge requests

• GitLab: gitlab!175340 (closed)
• CustomersDot: https://gitlab.com/gitlab-org/customers-gitlab-com/-/merge_requests/11523
• Status Page: status-page!932 (closed)

Does this MR meet the acceptance criteria?

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Conformity

• Code review guidelines.
• GitLab UI's contributing guidelines.
• [-] If it changes a Pajamas-compliant component's look & feel, the MR has been reviewed by a UX designer.
• [-] If it changes GitLab UI's documentation guidelines, the MR has been reviewed by a Technical Writer.
• [-] If the MR changes a component's API, integration MR(s) have been opened (see integration merge requests above).
• Added the ~"component:*" label(s) if applicable.