fix(uploader): taro jd env image base64 preview bug

src/packages/__VUE/uploader/index.taro.vue

@@ -251,7 +251,7 @@ export default create({
       files.forEach((file: Taro.chooseImage.ImageFile, index: number) => {
         let fileType = file.type;
         const fileItem = reactive(new FileItem());
-        if (!fileType && imgReg.test(file.path)) {
+        if (!fileType && (imgReg.test(file.path) || file.path.includes('data:image'))) {
           fileType = 'image';
         }
         fileItem.path = file.path;