Redesign resources page with PageBanner, featured download, and consistent page headers; v1.1.40

- Replace hero study guide form with PageBanner + featured download card in library
- Add PageBanner component used consistently across all interior pages (Downloads, Episodes, About, Contact, Q&A, Finished Books)
- Remove duplicate headings/eyebrows that conflicted with banner titles on About, Contact, Q&A, Finished Books pages
- Compact download card sizing (padding, border-radius, image size)
- Add Books & Resources tabbed section with fallback to TruthForLife widget
- Fix server sanitizer to pass through 'resources' placement items without URL
- Add featured-badge and featured card styling for primary guide

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/QASection.tsx

@@ -783,10 +783,6 @@ export default function QASection() {
   return (
     <section id="qa" className="section-qa" aria-label="Questions and answers">
       <div className="section-inner">
-        <h2 className="section-heading">
-          <span className="ornament">✦</span> Questions & Answers <span className="ornament">✦</span>
-        </h2>
-
         <div className="qa-submit-cta">
           <p className="qa-submit-cta-text">Have a question about Scripture or the podcast?</p>
           <Link to="/contact" className="btn-primary">Submit a Question →</Link>