Remove version-arrow from download button

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: taea

_includes/home/hero.html

@@ -100,7 +100,7 @@
 
           <!-- Download Button -->
           <a href="/{{ page.lang }}/downloads/"
-             class="relative mt-4 md:mt-6 inline-block bg-white text-ruby-600 text-sm md:text-base px-5 md:px-7 py-2 md:py-3 rounded-full font-extrabold hover:bg-stone-100 hover:scale-105 transition-all uppercase tracking-wide shadow-md whitespace-nowrap before:content-[''] before:absolute before:w-[2.3rem] before:h-[2.3rem] md:before:w-[2.9rem] md:before:h-[2.9rem] before:bg-[url('/images/home/hero/version-arrow.svg')] before:bg-contain before:bg-no-repeat before:-top-[1.3rem] md:before:-top-[1.6rem] before:-right-[0.7rem] md:before:-right-[0.9rem]">
+             class="mt-4 md:mt-6 inline-block bg-white text-ruby-600 text-sm md:text-base px-5 md:px-7 py-2 md:py-3 rounded-full font-extrabold hover:bg-stone-100 hover:scale-105 transition-all uppercase tracking-wide shadow-md whitespace-nowrap">
             {{ home.hero.download_button }}
           </a>
         </div>