fix: remove duplicate MessageItem #1289 (#1566)

### What problem does this PR solve?

fix: remove duplicate MessageItem #1289

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/hooks/flow-hooks.ts

@@ -120,7 +120,7 @@ export const useSetFlow = () => {
       dsl?: DSL;
       avatar?: string;
     }) => {
-      const { data } = await flowService.setCanvas(params);
+      const { data = {} } = await flowService.setCanvas(params);
       if (data.retcode === 0) {
         message.success(
           i18n.t(`message.${params?.id ? 'modified' : 'created'}`),

web/src/hooks/logicHooks.ts

@@ -189,7 +189,10 @@ export const useSendMessageWithSse = (
               const d = val?.data;
               if (typeof d !== 'boolean') {
                 console.info('data:', d);
-                setAnswer(d);
+                setAnswer({
+                  ...d,
+                  conversationId: body?.conversation_id,
+                });
               }
             } catch (e) {
               console.warn(e);