refactor: optimize video & upper rank page

reaction_board/web/static/app.js

@@ -74,7 +74,7 @@ function icon(name) {
     info: '<circle cx="12" cy="12" r="9"/><path d="M12 11v5"/><circle cx="12" cy="7.5" r="1"/>',
   };
   return `<svg class="nav-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor"
-    stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">${paths[name] || ""}</svg>`;
+    stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">${paths[name] || ""}</svg>`;
 }
 
 function renderNav() {