Add /listings folder to theme package command

[chrisberthe]

• Closes [Bug]: shopify theme package command excludes /listings/ directories from output ZIP #5975

WHY are these changes introduced?

Shopify introduced new requirements for the Shopify Theme Store that require themes with multiple presets to include a /listings directory in their theme zip submissions.

WHAT is this pull request doing?

• Added /listings/** pattern to include the listings directory in theme packages
• Updated command description to document listings directory support
• Enhanced existing test to verify listings files are included in the zip

How to test your changes?

• Add /listings folder to theme
• Run shopify theme package in theme directory
• The zip will include the /listings directory

Measuring impact

How do we know this change was effective? Please choose one:

• n/a - this doesn't need measurement, e.g. a linting rule or a bug-fix
• Existing analytics will cater for this addition
• PR includes analytics changes to measure impact

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes

[chrisberthe]

Can't seem to sign the CLA. When I click "submit" I get:

Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' https:". Either the 'unsafe-inline' keyword, a hash ('sha256-hfE+nRXuweYYzleuHJ9Z6FWVwojdcaOfmCZoctcaIfY='), or a nonce ('nonce-...') is required to enable inline execution.

[graygilmore]

Thanks, @chrisberthe! I'll raise to the team about the CLA.

[graygilmore]

@chrisberthe please try again! You should be good to go now.

[chrisberthe]

I have signed the CLA!

[chrisberthe]

@graygilmore seems like most of the failing actions are a broader CLI thing?

[graygilmore]

Very weird! Can you try rebasing with main and giving it another push. If it fails after that I'll tap the core CLI folks to have a look.

[chrisberthe]

Odd indeed—I had rebased off main a couple hours ago but didn't seem to fix.

[graygilmore]

@chrisberthe thanks for bearing with me on this. Looks like there's one legit failure and then we'll be good to go. You can run the tests locally with p test.

[chrisberthe]

Thanks @graygilmore for spotting that. Should be good now :)