Fix: Fixed the issue that the content of the Dropdown section cannot be seen when selecting the next operator #3221 (#8918)

…be seen when selecting the next operator #3221

### What problem does this PR solve?
Fix: Fixed the issue that the content of the Dropdown section cannot be
seen when selecting the next operator #3221

### Type of change

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

web/src/services/flow-service.ts

@@ -20,6 +20,7 @@ const {
   settingCanvas,
   uploadCanvasFile,
   trace,
+  inputForm,
 } = api;
 
 const methods = {
@@ -91,6 +92,10 @@ const methods = {
     url: trace,
     method: 'get',
   },
+  inputForm: {
+    url: inputForm,
+    method: 'get',
+  },
 } as const;
 
 const flowService = registerServer<keyof typeof methods>(methods, request);