message: refactor(stream-client): fix code format issue
diff: import { FlogoAppModel, TriggerSchema } from '@flogo-web/core';
  import { TriggerHandler, Trigger } from '@flogo-web/lib-client/core';
  -import { StreamMetadata } from "@flogo-web/plugins/stream-core";
  +import { StreamMetadata } from '@flogo-web/plugins/stream-core';
  import { InstalledFunctionSchema } from '../../../core';
  