Update SDDS development guide to use standard Drupal 10 profile and XB

See instructions from Simon Ramsay in Slack as well for XB install.

Bumping priority now that the XB team wants us to focus on using D11 standard profile rather than Starshot / Drupal CMS.

This has been completely refactored and simplified. It's working for me but needs more eyes.

https://www.drupal.org/community-initiatives/starshot-demo-design-system...

Update title and revise tasks.

Note that the XB part is just installing it and making sure it shows up. It is not testing the theme components with it. That needs to be in the testing guide which still needs to happen and is waiting on some more working on our side and the XB side.

#3464543: Create SDDS project testing guide

Assigning to Jacob for review.

Thanks!

Ah shoot... I guess I need to remove from composer.json... slammed today though o_O

The dummy content stuff was intentionally removed because the sitebuilding stuff that's in CT isn't relevant for the XB demo and it's not ideal to have those extra modules (and some aren't D11 compatible). The config for the extra modules was moved to optional per:

#3465047: Remove unnecessary dependencies before DrupalCon Barcelona

But, I want to make sure that those extra modules aren't getting added...

@sea2709 do you have time on your local to test removing from composer and seeing how it goes? If it works okay, then an MR here or on that issue ^ would be appreciated! :)

Jacob is also reviewing.

Some notes based on things that have been going on in Slack and in other issues:

1. We moved back to D10 because of using the components module that doesn't have a D11 release
2. To remove the components module dependency, we'd have to use SDC namespaces which would break Storybook
3. There is an open question to the XB team on if they want the components module gone
4. When following the current dev guide steps, you will get XB errors due to arrays in the SDC YAML files

See related issues:

#3469985: Reconcile components module vs SDC namespaces for SDDS includes/embeds
#3465047: Remove unnecessary dependencies before DrupalCon Barcelona
#3454125: Implement temporary design system for the DrupalCon Barcelona demo
#3470024: Arrays in SDDS SDC YAMLs are causing fatal errors in XB

@jacobadeutsch Let's talk through that then. They should show up in list and storybook should work.

Moving to postponed as the guide is okay for now but we'll need to see about changing it to D11 if we drop the components module dependency or if it gets a D11 release.

Whoops... change status.

Switch this from D11 to D10.

Follow-up issues to move this to D11:

#3471097: Switch SDDS to D11 components module once it's available

and

#3469985: Reconcile components module vs SDC namespaces for SDDS includes/embeds