Create project: Add configuration options

Julia Miocenerequested to merge
create-project-configuration into master

What does this MR do and why?

Add configuration options to the blank project creation form. You still can not create a project. The project creation will be introduced in a follow-up for easier review.

Important

These changes are behind the new_project_creation_form feature flag. They won't be available to users until all the work is done. See the plan here #514700 (closed)

References

FF plan: #514700 (closed)

UX Paper Cuts planning issue: #513102 (closed)

Screenshots or screen recordings

CleanShot_2025-05-22_at_12.50.25_2x

How to set up and validate locally

Go go http://gdk.test:3000/projects/new#blank_project

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