Make Play button fill more transparent for better glass effect

- Reduce opacity from 0.95 to 0.85 (85% transparent)
- Hover state: 0.95 for subtle feedback
- More glassmorphic appearance with background showing through
- Better matches design system glass aesthetic

Co-authored-by: Cursor <cursoragent@cursor.com>

src/views/Browse.vue

@@ -386,7 +386,7 @@ onUnmounted(() => {
   font-weight: 600;
   line-height: 1.4;
   border-radius: 16px;
-  background: rgba(255, 255, 255, 0.95);
+  background: rgba(255, 255, 255, 0.85);
   color: rgba(0, 0, 0, 0.9);
   box-shadow:
     0 12px 32px rgba(0, 0, 0, 0.4),
@@ -417,7 +417,7 @@ onUnmounted(() => {
 
 .hero-play-button:hover {
   transform: translateY(-2px);
-  background: rgba(255, 255, 255, 1);
+  background: rgba(255, 255, 255, 0.95);
   box-shadow:
     0 16px 40px rgba(0, 0, 0, 0.5),
     inset 0 1px 0 rgba(255, 255, 255, 1);