[#392] Fixed inline css dependency issues.

[alan-cole]

Checklist before requesting a review

• I have formatted the subject to include the issue number
  as [#123] Verb in past tense with a period at the end.
• I have provided information in the Changed section about WHY something was
  done if this was a bespoke implementation.
• I have performed a self-review of my code.
• I have commented on my code, particularly in hard-to-understand areas.
• I have added tests that prove my fix is effective or that my feature works.
• I have run new and existing relevant tests locally with my changes,
  and they have passed.
• I have provided screenshots, where applicable.

Changed

• Fix subject card box-sizing.
• Fix input box-sizing.
• Fix navigation card box-sizing.
• Fix campaign image box-sizing.
• Fix iframe with background box-sizing.
• Updated links in accordion to properly set light / dark.

I have not made any changes to slider as it is currently being worked on in #294

Screenshots

[github-actions]

🚀 Deployed on https://674653072cc71f16bfa51ae7--civictheme-uikit.netlify.app

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 13.75%. Comparing base (111194f) to head (348b5d4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #431   +/-   ##
=======================================
  Coverage   13.75%   13.75%           
=======================================
  Files          27       27           
  Lines        1301     1301           
  Branches      308      308           
=======================================
  Hits          179      179           
  Misses        904      904           
  Partials      218      218           

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[richardgaunt]

@alan-cole Thanks I was just about to create an issue for this.

@febdao Your PR is superceded by this but thank you for fixing

[richardgaunt]

Fixes #417