添加ai对话框

desktop/core/src/desktop/templates/assist.mako

@@ -2748,8 +2748,8 @@ from desktop.views import _ko
             .input-area {
               display: flex;
               padding: 10px;
-              background-color: #f9f9f9;
               border-top: 1px solid #eee;
+              margin: 0px;
             }
 
             .user-input {