Merge branch refs/heads/develop into refs/heads/feature/前端样式修改

jikimo_frontend/static/src/js/custom_image_temp.js

@@ -4,6 +4,8 @@ import { registry } from "@web/core/registry";
 import { url } from "@web/core/utils/urls";
 import { ImageField, imageCacheKey } from '@web/views/fields/image/image_field';
 
+const placeholder = "/web/static/img/placeholder.png";
+
 export class CustomImageField extends ImageField {
     setup() {
         super.setup();