refactor(widget): simplify search and author cards

assets/css/frontend/widget-batch5.css

@@ -808,19 +808,6 @@
   color: inherit !important;
 }
 
-.aksrt-author-card__badge {
-  display: inline-flex;
-  align-items: center;
-  gap: 4px;
-  margin-top: 8px;
-  padding: 2px 10px;
-  border-radius: 999px;
-  font-size: 12px;
-  background: #fef3c7;
-  color: #b45309;
-}
-.aksrt-author-card__badge img { border-radius: 50%; }
-
 /* 徽章入口与弹窗样式统一由 assets/css/frontend/medal.css 提供。 */
 
 /* Forum tab topics (batch6) */