[PBNTR-515] Remove margin bottom from Typeahead kit, un-revert PBNTR-479

[ElisaShapiro]

What does this PR do? A clear and concise description with your runway ticket url.
PBNTR-515 is attempt #2 at PBNTR-479, which had to be reverted from the Playbook 14.3.1 release due to an issue found in ninja testing where the Creatable-async-data typeahead used here (nitroqa link, component code link) did not work.

The change to the React in this PR vs PBNTR-479 mirrors the Rails version of the code much more closely - I realized that there was no need to pass the marginBottom prop from the Typeahead.tsx component to it's Control.tsx subcomponent because the marginBottom="none" in the subcomponent was being applied to a TextInput, not to anything Typeahead related (so no need to pass props).

Steps for PR completion:

• Step 1: rectify this specific issue by reworking the React Typeahead margin bottom change (still inspired by the previous datepicker change) and alpha test immediately in nitro-web in this specific location.
• Step 2: add in the rest of the work (Rails Typeahead margin bottom work and dark mode margin bottom work from PBNTR-479's PR into this one, and re-alpha test. (Note, the React Radio Children doc example alignment task will no longer included here as PBNTR-373 required a revert as well - this task will likely be a part of that ticket's fix PR).

Screenshots: Screenshots to visualize your addition/change
Rails margin bottom doc example

React margin bottom doc example

Datepicker dark mode margin bottom doc example works (compare vs current prod)

How to test? Steps to confirm the desired behavior:

1. Go to margin bottom doc example (rails/react).
2. Inspect each typeahead to see margin_bottom prop in action.
3. Test typeaheads/typical paths in nitro-web milano environment to ensure works. The particular typeahead with issues initially inspiring the revert is located here (definitely test this one).

Checklist:

• LABELS Add a label: enhancement, bug, improvement, new kit, deprecated, or breaking. See Changelog & Labels for details.
• DEPLOY I have added the milano label to show I'm ready for a review.
• TESTS I have added test coverage to my code.

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.1.pre.alpha.PBNTR515typeaheadmarginbottomredux3746

Your Alpha for NPM is 14.3.1-alpha.PBNTR515typeaheadmarginbottomredux3746

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.1.pre.alpha.PBNTR515typeaheadmarginbottomredux3747

Your Alpha for NPM is 14.3.1-alpha.PBNTR515typeaheadmarginbottomredux3747

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.1.pre.alpha.PBNTR515typeaheadmarginbottomredux3751

Your Alpha for NPM is 14.3.1-alpha.PBNTR515typeaheadmarginbottomredux3751

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.1.pre.alpha.PBNTR515typeaheadmarginbottomredux3752

Your Alpha for NPM is 14.3.1-alpha.PBNTR515typeaheadmarginbottomredux3752

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.1.pre.alpha.PBNTR515typeaheadmarginbottomredux3750

Your Alpha for NPM is 14.3.1-alpha.PBNTR515typeaheadmarginbottomredux3750

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.2.pre.alpha.PBNTR515typeaheadmarginbottomredux3756

Your Alpha for NPM is 14.3.2-alpha.PBNTR515typeaheadmarginbottomredux3756

[github-actions]

🎉 Congratulations on creating an Alpha Version!

Your Alpha for Ruby Gems is 14.3.2.pre.alpha.PBNTR515typeaheadmarginbottomredux3785

Your Alpha for NPM is 14.3.2-alpha.PBNTR515typeaheadmarginbottomredux3785