Update dark mode illustrations

[irfano]

Description

During the design review, it was commented that the illustrations we use for Jetpack setup flow don't look great in dark theme, so we got new versions that use lighter purple, this PR updates those illustrations.
I also forgot to update the light mode of empty store picker illustration, and updated it here.

Steps to reproduce

Checking the screenshots below should be enough.

Reproduce Empty Site Picker

1. Log in to a site using an account that is associated with only one site.
2. After logging in, use another admin account to delete the user from the site.
3. Go to Menu → Site picker

The tests that have been performed

Screens below

Images/gif

Before	After

• I have considered if this change warrants release notes and have added them to RELEASE-NOTES.txt if necessary. Use the "[Internal]" label for non-user-facing changes.

Reviewer (or Author, in the case of optional code reviews):

Please make sure these conditions are met before approving the PR, or request changes if the PR needs improvement:

• The PR is small and has a clear, single focus, or a valid explanation is provided in the description. If needed, please request to split it into smaller PRs.
• Ensure Adequate Unit Test Coverage: The changes are reasonably covered by unit tests or an explanation is provided in the PR description.
• Manual Testing: The author listed all the tests they ran, including smoke tests when needed (e.g., for refactorings). The reviewer confirmed that the PR works as expected on big (tablet) and small (phone) in case of UI changes, and no regressions are added.

[wpmobilebot]

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

	App Name	WooCommerce-Wear Android
	Platform	⌚️ Wear OS
	Flavor	Jalapeno
	Build Type	Debug
	Commit	bc513ed
	Direct Download	woocommerce-wear-prototype-build-pr13392-bc513ed.apk

[wpmobilebot]

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

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Commit	bc513ed
	Direct Download	woocommerce-prototype-build-pr13392-bc513ed.apk

[JorgeMucientes]

Hey @irfano nicely done! I was able to test almost all the cases. However there's one screen I was not able to test:

How do you log in with an account without any sites? Because we currently force the user to enter a site url, so I always land on this screens:

deleted.mp4

(I've deleted that single site that is shown on the list, but still shows there, so the site picker is never empty)

Also I wanted to ask about this illustration from the flow above. Is it correct? Because it feels like it has the "old" look and feel, despite having the new Woo logo there:

Lastly, wanted to ask about the WooCommerce branding on the login email template. Is it under your radar to report this to get it updated? Because it currently shows the old style:

[irfano]

How do you log in with an account without any sites? Because we currently force the user to enter a site url, so I always land on this screens:

I removed the user from the site after logging in. I added the instructions to the description.

Also I wanted to ask about this illustration from the flow above. Is it correct?

Yes, that's correct. We only updated the logo and colors on it. Figma reference: Ntkk0ER4hHt5y9KjEGIiGk-fi-3450_5600

Lastly, wanted to ask about the WooCommerce branding on the login email template. Is it under your radar to report this to get it updated? Because it currently shows the old style:

It’s expected that it’s currently showing the old logo for now. But I still reported it to ensure that updating it is included in our plans. (Internal link: p1738072483131849-slack-C07E7D0R761)