Add "Status" row to "Post Settings"

[kean]

Description

One of the defining characteristics of WordPress is the set of statuses for posts and how you can easily move a post from one state to another. This PR introduces a new "Status" field to "Post Settings" to match the web.

This feature was made possible thanks to the streamlined publishing introduced in 24.9, the new SwiftUI-based "Post Settings" that uses a plain struct to represent settings added in 26.0, and further improvements made to it in 26.4 with a new publishing flow based on "Post Settings".

Changes

• Add "Status" field to the "Post Settings" screen, which provides a simple and easily discoverable way to move posts from one state to another. For example, it's now much easier to find how to move "Pending" post to a "Scheduled" state, etc.
• Add "Publish Date" back to "Post Settings":for draft and pending posts. This allows you to pre-select the publish date without actually scheduling the post. This enables the scenarios like "an author creates a post with a scheduled date and submits it for a a review". It also fixes a long-standing issues like Scheduling options no longer available Jetpack iOS #23300 – there are now multiple easily discoverable and intuitive ways to schedule a post.
• Addresses https://linear.app/a8c/issue/CMM-809/button-done-disappears-when-you-enter-a-password-for-post by showing the "Enter Password" field as a modal sheet and by using UIKit to switch to a "secure" mode so that it doesn't lose state. Note: I will integrate the new modal in the "Visibility" row in the "Publishing" sheet in the upcoming PR.
• Use "Menlo" font for the password field to make it easier to distinguish between characters like 0 and 0

Technical Notes

The changes are mainly only in the UI. The only exception is that we also finally consolidated "publishing" and "saving" a post, so there is now a single method in PostCoordinator that syncs all the latest changes to the server (using the existing delta-update mechanism) and notifies the app.

Screenshots

User Scenarios

1. Scheduling a password-protected post

schedule.mov

2. Returning a published post back in review

return-to-review.mov

Testing Instructions

I would suggest focusing on the following two scenarios:

• Scheduling posts as it's traditionally been buggy
• Sending password protected posts as it's important it works

It may be worth making sure that none of the bugs previously fixed in 24.9 are reintroduces. Release notes from 24.9:

• [**] Fix [Restored Draft Posts, when Published, Disregard Publish Date Setting #12121], [What exactly should be shown when a post has a date but is still a draft? #13724], [Editor: Can't save a draft with a past or future publish date #14251], [Posts: Scheduled posts don't move from Draft to Scheduled after being moved back to Draft and then edited. #18517], [Posting/Editing: posts created and edited in the app then edited on the web are published with the wrong date #17086], [Post Publishing: Date Picker resets to initial selection after changing screen orientation #15767], [Posts: The time a scheduled post will publish can be confusing #16514], [Cannot change a draft to a use a date in the past without publishing it #13654] and other untracked issues with the "Publish Date" field in Post Settings.
• [***] Fix multiple post sync issues: [Posts do not appear in the correct status tab when they have local changes #21895], [If a post was deleted on a remote and modified locally, it can't be deleted #22037], [Editor / Post List: Issues syncing posts #8111], [Posts: User unable to sync published posts #10168], [Pages can get stuck updating #17343], [Editor: multiple posts being uploaded as duplicates on Jetpack sites #14221], [[Offline Posting] Duplicate posts may appear in the Post List #12800], [Double draft post created when saving as draft after video upload failed #12073], [Posts appear duplicated on post list screen #14572], [Async Posting: When offline, queue posts to upload later #9319], [Local post changes are saved automatically #21941], [Editor: Errors editing a failed post #3070], [Code Review: Review editor and publishing logic realted to local-only posts. #3978], [Reported: some posts are stuck as drafts in the app even though they are published. #9449], [“Local Changes” label persisting alongside pages that have been saved remotely in Aztec #13023], [Posting from unverified WP.com account results in broken flow #21472]

[dangermattic]

	1 Warning
⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

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[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	29471
	Version	PR #24939
	Bundle ID	com.jetpack.alpha
	Commit	ba92c56
	Installation URL	6ufhls30caf6o

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Configuration	Release-Alpha
	Build Number	29471
	Version	PR #24939
	Bundle ID	org.wordpress.alpha
	Commit	ba92c56
	Installation URL	69n647aktqlq0

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[kean]

The visilbilityRow is displayed at the top of the screen in the "Publishing" sheet (matches the web).

[kean]

If you try to change the status of a post, it will be performed as a synchronous operation (showing a spinner until succeeds).

[sonarqubecloud]

Quality Gate passed

Issues
18 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
3.2% Duplication on New Code

See analysis details on SonarQube Cloud