[DRAFT] [Do not merge] PageHeader component

[vdepizzol]

What are you trying to accomplish?

[DRAFT]

Implementation of PageHeader component. Part of https://github.com/github/primer/issues/544 (only available for Hubbers).

Ongoing API design considerations being considered at this FigJam file (only available for hubbers).

What approach did you choose and why?

What should reviewers focus on?

Are additional changes needed?

• ⚠️ Yes! The styles in this PR are currently being tested on dotcom and will need to be updated with any changes. See https://github.com/github/github/pull/229221.

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 15b92b5f2fe91b59cb16e7121b1bdfe043962931

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[github-actions[bot]]

Hi! This pull request has been marked as stale because it has been open with no activity for 60 days. You can comment on the pull request or remove the stale label to keep it open. If you do nothing, this pull request will be closed in 7 days.

[github-actions[bot]]

Hi! This pull request has been marked as stale because it has been open with no activity for 60 days. You can comment on the pull request or remove the stale label to keep it open. If you do nothing, this pull request will be closed in 7 days.

[github-actions[bot]]

Hi! This pull request has been marked as stale because it has been open with no activity for 60 days. You can comment on the pull request or remove the stale label to keep it open. If you do nothing, this pull request will be closed in 7 days.