Design Picker: Rename step slug from designSetup to design-setup

[taipeicoder]

Fixes #100206

Proposed Changes

This PR replaces all instances of designSetup to design-setup. In addition, taking into account backwards compatibility, the following changes were also made:

1. Ensure Tracks event still triggers for the previous step slug.

export const getStepOldSlug = ( stepSlug: string ): string | undefined => {
	const stepSlugMap: Record< string, string > = {
		'create-site': 'site-creation-step',
+		'design-setup': 'designSetup',
	};

	return stepSlugMap[ stepSlug ];

2. Ensure previous URL is still accessible.

+	DESIGN_SETUP_LEGACY: {
+		slug: 'designSetup',
+		asyncComponent: () => import( './steps-repository/design-setup' ),
+	},

/setup/onboarding flow

Screen.Capture.on.2025-02-25.at.16-32-12.mp4

/setup/site-setup flow (head to /start?flags=-onboarding/force-goals-first)

Screen.Capture.on.2025-02-25.at.16-45-54.mp4

/setup/update-design

Screen.Capture.on.2025-02-25.at.16-49-50.mp4

/setup/import-focused flow

Screen.Capture.on.2025-02-25.at.17-17-04.mp4

Note

We will follow up updating the URL in wpcom and Jetpack in later PRs.

Why are these changes being made?

Stepper step slug consistency.

Testing Instructions

• Ensure /setup/site-setup flow still works as intended
• Ensure /setup/onboarding flow still works as intended
• Ensure /setup/update-design flow still works as intended
• Ensure /setup/import-focused flow still works as intended
• In each of the flows above, replace design-setup with designSetup in the URL and ensure the flow still works

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
  • For UI changes, have we tested the change in various languages (for example, ES, PT, FR, or DE)? The length of text and words vary significantly between languages.
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-aUh-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-134304

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-134304&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-134304&env=a8c-for-agencies

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

App Entrypoints (~59 bytes added 📈 [gzipped])

name           parsed_size           gzip_size
entry-stepper      +3717 B  (+0.3%)      +59 B  (+0.0%)

Common code that is always downloaded and parsed every time the app is loaded, no matter which route is used.

Sections (~50 bytes added 📈 [gzipped])

name                parsed_size           gzip_size
site-setup-wg             +67 B  (+0.0%)      +15 B  (+0.0%)
site-setup-flow           +67 B  (+0.0%)      +15 B  (+0.0%)
onboarding-flow           +64 B  (+0.0%)      +17 B  (+0.0%)
update-design-flow        +45 B  (+0.0%)      +13 B  (+0.0%)
import-flow               +38 B  (+0.0%)       +5 B  (+0.0%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.