feature: stacked fields by default

[adrianthedev]

Description

It allows a developer to set some fields or all of them in a stacked layout instead of inline.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

Manual review steps

1. Go to the initializer and edit the field_wrapper_layout option to :stacked
2. See the show and edit views for a resource
3. observe that all the fields are stacked

---

1. Reset the initializer to how it was (:inline)
2. Go to the user and observe that only the first_name field is stacked. The rest are inline.

Manual reviewer: please leave a comment with output from the test if that's the case.

[codeclimate]

Code Climate has analyzed commit ecfbc55 and detected 1 issue on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1

View more on Code Climate.

[github-actions]

This PR has been merged into main. The functionality will be available in the next release.

Please check the release guide for more information.