[UX] Implement Structured Skeletons and Fix Responsive Map Overflows

### **Description:**
The current loading experience on project detail pages uses a generic full-page spinner, which causes layout shifts. Additionally, certain interactive elements like author avatars have suboptimal tap targets, and the Chapter Map overflows on small mobile screens.

### **Changes Proposed:**
- UX (Loading): Replaced the central LoadingSpinner with structured AboutSkeleton blocks in ProjectDetailsPage for
better perceived performance.
- A11y (Tap Targets): Increased the author avatar size in Release.tsx to 32px to meet mobile touch target accessibility
standards.

### **Responsive Fix:**

Updated CardDetailsPage to use an aspect-video container for Chapter Maps instead of a fixed h-[250px], preventing map compression and layout breaks on mobile.
Impact: Improves the perceived speed of the application and ensures a robust experience across all device form factors.