fix: Refine blog controls copy and style

Author: Yusaku01

src/components/Blog/BlogControls.astro

@@ -80,7 +80,7 @@ const searchIndexUrl = localizedPath('/search-index.json', locale);
             data-blog-base-href={tab.href}
             class={`px-2 py-1.5 rounded-full border transition-colors min-w-16 text-center ${
               isActive
-                ? 'bg-[#333] text-white border-[#333]'
+                ? 'bg-[#333] text-white border-[#333] font-bold'
                 : 'bg-white text-gray-700 border-gray-200 hover:bg-gray-100 dark:bg-gray-900 dark:text-gray-200 dark:border-gray-700 dark:hover:bg-gray-800'
             }`}
             aria-current={isActive ? 'page' : undefined}
@@ -104,9 +104,6 @@ const searchIndexUrl = localizedPath('/search-index.json', locale);
         fill="currentColor"
         viewBox="0 0 16 16"
       >
-        <path
-          d="M3.999 3a1 1 0 0 0-1 1v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V4a1 1 0 0 0-1-1h-8zM2 4a2 2 0 0 1 2-2h8a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2h-8a2 2 0 0 1-2-2V4z"
-        ></path>
         <path
           d="M5.5 12a1.5 1.5 0 1 1-3 0 1.5 1.5 0 0 1 3 0zm-3-8.5a1 1 0 0 1 1-1c5.523 0 10 4.477 10 10a1 1 0 1 1-2 0 8 8 0 0 0-8-8 1 1 0 0 1-1-1zm0 4a1 1 0 0 1 1-1 6 6 0 0 1 6 6 1 1 0 1 1-2 0 4 4 0 0 0-4-4 1 1 0 0 1-1-1z"
         ></path>

src/lib/i18n.ts

@@ -83,7 +83,7 @@ export const uiText = {
       en: 'View older posts',
     },
     rss: {
-      ja: 'RSSフィードで購読',
+      ja: 'RSSで購読する',
       en: 'Subscribe via RSS',
     },
     tabs: {