CRDCDH-2269 Refactor Footer Components, Replace Newsletter Topic

[amattu2]

Overview

This PR does some limited refactoring of the footer components (Desktop, Tablet, Mobile), and abstracts the Newsletter form to a separate component. Additionally, this updates the incorrect Newsletter Topic ID from CCDI with a new one dedicated to CRDC.

Change Details (Specifics)

• Update the incorrect CCDI topic id
• Cleanup of the different footer components, mostly removing the index-based React keys
• Fix the DesktopFooter using a div element instead of footer
• Abstract the form and validation to a separate (unstyled) component
• Add test coverage for the different components (rendering the correct footer, accessibility, and form expectations)

Related Ticket(s)

CRDCDH-2269 (Task)
CRDCDH-2204 (US)

[coveralls]

Pull Request Test Coverage Report for Build 13159730519

Details

• 42 of 42 (100.0%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.7%) to 59.238%

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Totals
Change from base Build 13159705909:	0.7%
Covered Lines:	4142
Relevant Lines:	6554

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💛 - Coveralls

[Alejandro-Vega]

LGTM! The footer is still working as expected, and all the cleanup is really well done. Great job!