Add descriptive PR summary

Author: Kelvin-codes

pr.md

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+# PR: Community + Use Cases Pages, Loading States, and UI Polish
+
+## Overview
+This PR completes the remaining UX items for the Stellar Suite marketing site. It adds new Community and Use Cases pages, introduces lightweight loading states, and improves navigation with a top route loader and a scroll-to-top affordance. The changes are intentionally small and straightforward.
+
+## What’s Included
+- **Community page** with contributor highlights, stats, and contribution paths.
+- **Use cases & examples page** showcasing common workflows and template-driven examples.
+- **Top route loader** for visible feedback on navigation.
+- **Scroll-to-top button** on the home page for long-scroll UX.
+- **Skeleton loaders** for app-level and key routes (home, blog index, blog post, FAQ, community, use cases).
+- **Navigation updates** to surface the new pages.
+
+## Implementation Notes
+- Kept components minimal and direct.
+- Loading UI uses the existing `Skeleton` component.
+- Route loader responds to `usePathname` changes and stays lightweight.
+- Scroll-to-top is only mounted on the home page.
+
+## Files Touched (High-Level)
+- New pages: `frontend/src/app/community/page.tsx`, `frontend/src/app/use-cases/page.tsx`
+- New loading states: `frontend/src/app/**/loading.tsx`
+- New UI components: `frontend/src/components/RouteTopLoader.tsx`, `frontend/src/components/ScrollToTopButton.tsx`
+- Navigation: `frontend/src/components/Navbar.tsx`
+- Layout/home updates: `frontend/src/app/layout.tsx`, `frontend/src/app/page.tsx`
+
+## Issues Closed
+- Closes #269
+- Closes #268
+- Closes #266
+- Closes #263
+- Closes #259
+
+## Testing
+- Not run (UI-only changes).
+
+## Notes for Reviewers
+- Copy and layout are easy to adjust if you want different emphasis.