nwd-static-website_issue#279_feat: restyle companies page content blocks as cards over light blue canvas

[AzariasANeals]

• Description:
  Transition informational text elements on the business pipeline view into individual structural blocks.
• Tasks:
• Convert the global view background container to light blue.
• Package independent descriptive pipelines, structural guides, or engagement phases into matching structural content cards.

Screenshots / Visual Aids 🔎

BEFORE:

AFTER:

How to Test 🧪

1. Steps to Reproduce:
   • Step 1: Run "npm start"
   • Step 2: Navigate to Companies page
   • Step 3: Make sure that the global view background container has been converted to light blue.
   • Step 4: Make sure that the independent descriptive pipelines, structural guides, and engagement phases have been made into matching structural content cards.

Checklist ✅

• I have tested this PR locally and it works as expected.
• This PR resolves an issue (Resolves #issue-number).
• Reviewers, assignees(self), tags, and labels are correctly assigned.
• Squash commits and enable auto-merge if approved.