WordPress 6.7 compat: Removes early i18n calls to fix notices. (#40474)

* Move admin menu initialization to the init hook.

* Changelogs.

* Added Config callbacks for package options.

* Removed the i18n call from deprecation notices for early calls.

* Changelog.

* Update projects/plugins/jetpack/functions.global.php

Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

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Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/12238844667

Upstream-Ref: Automattic/jetpack@c2f3354