Improve banner image rendering quality

Added image-rendering properties to prevent fuzzy upscaling:
- image-rendering: -webkit-optimize-contrast for webkit browsers
- image-rendering: crisp-edges as fallback

This ensures upscaled images maintain sharp edges and better quality
instead of appearing blurry or fuzzy.

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

src/views/Browse.vue

@@ -91,6 +91,7 @@
           :src="featuredContent?.backdrop || '/images/god-bless-bitcoin-backdrop.jpg'"
           alt="Featured content"
           class="w-full h-full object-cover object-center"
+          style="image-rendering: -webkit-optimize-contrast; image-rendering: crisp-edges;"
         />
         <div class="absolute inset-0 hero-gradient"></div>
       </div>