Remove deprecated components from the project

- Delete unused components including About19, Contact21, CTA, Faq7, Feature284, Hero235, Landing, Pricing4, Stats11, and Accordion.
- Clean up the codebase by removing unnecessary files to improve maintainability and reduce clutter.
- Ensure that the removal of these components does not affect the existing functionality of the application.

tests/landing-content.test.mjs

@@ -3,8 +3,11 @@ import test from "node:test";
 import assert from "node:assert/strict";
 
 const sourcePaths = [
-  new URL("../src/components/landing.tsx", import.meta.url),
   new URL("../src/components/landing-hero-section.tsx", import.meta.url),
+  new URL("../src/components/landing/services-section.tsx", import.meta.url),
+  new URL("../src/components/landing/deliverables-section.tsx", import.meta.url),
+  new URL("../src/components/landing/packages-section.tsx", import.meta.url),
+  new URL("../src/components/landing/contact-section.tsx", import.meta.url),
 ];
 
 const footerPath = new URL("../src/components/footer27.tsx", import.meta.url);