Remove border from list group items in AiAssistantManagementKeywordSearch styles

apps/app/src/features/openai/client/components/AiAssistant/AiAssistantManagementModal/AiAssistantManagementKeywordSearch.module.scss

@@ -20,6 +20,10 @@
        display: none !important;
     }
   }
+
+  .list-group-item {
+    border: none;
+  }
 }
 
 // == Colors